Javascript – MYNYML http://mynyml.com/ Wed, 15 Sep 2021 06:23:44 +0000 en-US hourly 1 https://wordpress.org/?v=5.8 https://mynyml.com/wp-content/uploads/2021/05/cropped-icon-32x32.png Javascript – MYNYML http://mynyml.com/ 32 32 Learn everything you need to know to become a JavaScript programmer for only $ 31 https://mynyml.com/learn-everything-you-need-to-know-to-become-a-javascript-programmer-for-only-31/ https://mynyml.com/learn-everything-you-need-to-know-to-become-a-javascript-programmer-for-only-31/#respond Tue, 14 Sep 2021 10:00:01 +0000 https://mynyml.com/learn-everything-you-need-to-know-to-become-a-javascript-programmer-for-only-31/ If you’ve always wished you had a high paying tech career but lacked the confidence to try and learn to code, you should know that JavaScript is actually a pretty straightforward programming language that is really, really easy to learn. In fact, you can start from scratch and practice at your own pace with the […]]]>

If you’ve always wished you had a high paying tech career but lacked the confidence to try and learn to code, you should know that JavaScript is actually a pretty straightforward programming language that is really, really easy to learn. In fact, you can start from scratch and practice at your own pace with the full JavaScript bundle at a very reasonable price.

Start with the “Complete Introduction to JavaScript” course to learn how JavaScript works. You will create exciting interactive content before the end of this first class. Continue with “JavaScript Useful Code Snippets & Applications,” which will teach you how to use JavaScript in everyday code so you don’t have to write the same things over and over again. Then move on to the “JavaScript Practice Course”, where you will gain more experience building 5 mini-apps from scratch.

You are now ready to start learning about the JavaScript Document Object Model (DOM) and how to interact with it in “JavaScript DOM Explorer with Mini Applications”. Then you will have a hands-on practice with “JavaScript Application Mini Projects”. But the fun really starts with “JavaScript DOM Games”.

The bundle is complemented by two other courses: “Learn HTML5 Canvas Drawing with JavaScript” and “JavaScript and OOP Objects with JavaScript”. And remember, coding skills are extremely mobile. So, if you want to work remotely from exotic locations, you might want to learn a new foreign language, as well as a programming language.

The courses in this bundle are perfect to get you started on a whole new career path in one of the most popular and in-demand programming languages. Verified buyer Stephenie D. gave this set an impressive 5 out of 5 stars, stating: “Excellent course – worth every penny! Informative and helpful and very clear. Very pleased with it.”

Much of this is surely due to instructor Laurence Svekis, who has been teaching web development and digital marketing strategy courses for almost two decades. An expert in innovative technologies, he has extensive experience in developing smart online digital solutions for businesses and small businesses.

Don’t pass up this chance to break into the very lucrative tech industry. Get the full JavaScript bundle today when it’s on sale for just $ 31.


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Learn how to create a simple dictionary app using JavaScript https://mynyml.com/learn-how-to-create-a-simple-dictionary-app-using-javascript/ https://mynyml.com/learn-how-to-create-a-simple-dictionary-app-using-javascript/#respond Fri, 10 Sep 2021 17:45:00 +0000 https://mynyml.com/learn-how-to-create-a-simple-dictionary-app-using-javascript/ JavaScript is one of the most popular programming languages ​​among web developers. While learning JavaScript, everyone starts with the basics and building simple applications using DOM manipulation. In this article, you will learn how to create a dictionary using JavaScript and DOM manipulation. This article expects you to know the basics of JavaScript before reading […]]]>

JavaScript is one of the most popular programming languages ​​among web developers. While learning JavaScript, everyone starts with the basics and building simple applications using DOM manipulation.

In this article, you will learn how to create a dictionary using JavaScript and DOM manipulation. This article expects you to know the basics of JavaScript before reading it.

Look at the API

API stands for Application Programming Interface. APIs simplify software development and innovation by allowing applications to exchange data and functionality easily and securely.

This project uses the Dictionaryapi.dev API. This is a free API that provides several definitions, phonetics, and other grammatical terms related to the words you are looking for.

The link to the API is as follows:

https://api.dictionaryapi.dev/api/v2/entries/en/word

Frontal layout of the project

The front-end layout for this project is built using HTML and TailwindCSS. You can import TailwindCSS into your HTML file using the CDN below.

<link href="https://unpkg.com/tailwindcss@^2/dist/tailwind.min.css" rel="stylesheet" />

The HTML page has an entry and a button where the user can enter the search word. There are three more divs to display the part of speech, several definitions, and audio that helps you pronounce the word correctly. By default, these three divs have a null display property. When the data is fetched from the API, the display property of these divs will be set to block.

 
<div class="bg-green-100 min-h-screen pt-10">
<h2 class="text-green-600 text-5xl pt-4 font-semibold text-center">
Dictionary
</h2>
<div class="flex justify-center p-8 items-center">
<input
type="text"
placeholder="Enter the word"
id="word"
class="
py-2
w-1/4
focus:outline-none
border-2 border-green-600
rounded
px-3
"
/>
<button
id="search"
class="bg-green-600 text-white text-xl px-4 py-2 rounded">
Search
</button>
</div>
<div class="flex flex-col justify-center items-center">
<div id="partOfSpeechDiv" class="hidden">
<h2 class="text-xl text-gray-500 py-2" id="partOfSpeechHeader"></h2>
<p class="text-md" id="partOfSpeechPara"></p>
</div>
<div class="hidden" id="meaningDiv">
<h2 class="text-4xl py-3 px-3 text-green-500" id="meaningHeader"></h2>
</div>
<div id="audio" class="hidden"></div>
</div>
</div>
<script src="./index.js"></script>

This interface will look like this

Front-end layout of the dictionary project

Adding Features Using JavaScript

Before you can retrieve the data through the API and display it, you need to access the HTML elements using their credentials. You can access the credentials using the JavaScript method getElementById ().

const word = document.getElementById("word");
const search = document.getElementById("search");
const display = document.getElementById("display");
const partOfSpeechDiv = document.getElementById("partOfSpeechDiv");
const partOfSpeechHeader = document.getElementById("partOfSpeechHeader");
const partOfSpeechPara = document.getElementById("partOfSpeechPara");
const meaningDiv = document.getElementById("meaningDiv");
const audioDiv = document.getElementById("audio");
const meaningHeader = document.getElementById("meaningHeader");

Adding the event listener

The input element in the HTML page has a named identifier word. After gaining access to the input element, you can retrieve the value of the text in the input element using the .value attribute.

The search button has the named identifier to look for. You must add a Click on event listener to raise the event and make a function call to retrieve the data through the API.

Async and pending

Since 2017, JavaScript introduced the concept of asynchronous and wait to perform asynchronous requests. You use async-wait in the place of .so and .to catch resolve and reject promises.

Related: Synchronous Programming vs Asynchronous Programming: How Are They Different?

search.addEventListener("click", async () => {
try {
let url = `https://api.dictionaryapi.dev/api/v2/entries/en/${word.value.toLowerCase()}`;
const res = await fetch(url);
const data = await res.json();
displayData(data);
} catch (error) {
console.log(error);
}
});

To work with promises using async-wait, you must add the asynchronous keyword before the function definition. And every time you make a request or call a function, you need to add the wait keyword before.

The wait The keyword suspends further execution of the function until the previous request is not completed.

You must complete the set async-wait promise an action in the try-catch to block. If the promise fails to retrieve the data, it will display the error in the to catch to block. Before passing the word to the API, it should be in lowercase format for accurate results. You can use the .tiny() string method to convert the word.

The fetch method should retrieve the data from the API. You must add the wait keyword to cause the function to stop at that point while the fetch method retrieves data.

After recovering the data, you need to convert it to JSON format using .json () method on the answer.

Viewing data on the web page

After recovering the data and converting it to JSON format, you need to display it on the web page. You must call the showData () method and pass the data to it.

The structure of the API response is as follows:

The image shows the response of the data fetched from the API

The API returns the part of speech, the multiple definitions, and the phonetics of the words in the response.

You can get all the definitions of the given word using:

const meanings = data[0].meanings[0].definitions;

The variable meanings is an array that contains all the definitions of the given word.

To get the part of speech for the given word:

const partOfSpeech = data[0].meanings[0].partOfSpeech;

You can add the speech part of the word using the .innerHTML attribute. In the HTML code, the part of speech div had the property to display nothing by default but, in the JavaScript code, after fetching the data, you must set the display property to to block.

Display of definitions

You need to create a variable named meaning list. After you have added all the definitions to this variable, you must assign it the .innerHTML attribute to display it on the web page.

Related: HTML Essentials Cheat Sheet: Tags, Attributes, etc.

Go through the table of meanings and keep track of a single definition and the index at which it is present. Add the unique definition and index to the meaning list variable inside the paragraph element of HTML.

Once you are out of the loop, you need to pass it to the .innerHTML attribute of sensDiv.

Display the audio element on the web page

The response received by the API contains phonetics that help users understand the pronunciation of the word. To add this sound to the webpage, you need to create an audio element and pass the phonetics in the src attribute of this element. Finally, you have to put the audio element in the audioDiv using the .innerHTML attribute.

Displays the definitions, part of speech and phonetics of the given word

const displayData = (data) => {
console.log(data);
const partOfSpeech = data[0].meanings[0].partOfSpeech;
const meanings = data[0].meanings[0].definitions;
partOfSpeechDiv.className =
"bg-gray-100 px-2 py-3 flex flex-col w-1/4 justify-center items-center border-2 border-green-500 rounded block";
partOfSpeechHeader.innerHTML = "Part of Speech";
partOfSpeechPara.innerHTML = partOfSpeech;
let meaningList = ``;
meanings.forEach((meaning, ind) => {
meaningList += `<p class='my-3 px-4 py-1 text-md'>${ind + 1}) ${
meaning.definition
} </p>`;
});
meaningDiv.className =
"text-center w-1/4 bg-gray-100 my-6 border-2 border-green-500 rounded block";
meaningHeader.innerText = "Meanings";
meaningDiv.innerHTML = meaningList;
let aud = `<audio src="${data[0].phonetics[0].audio}" controls>`;
audioDiv.className = "block";
audioDiv.innerHTML = aud;
};

Displays definitions, part of speech and phonetics for the word book

Add another project to your list

Now that you’ve learned how to create a dictionary app using JavaScript, it’s time for you to create some exciting projects on your own. Construction projects will not only improve your basics but also add projects to your resume.

Looking for more practice on the concepts of JavaScript and DOM manipulation? Here is another project you can build to boost your skills.


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How to create a basic to-do list app using JavaScript

One of the best project ideas for people new to JavaScript is to create a simple to-do list app. Here is our own tutorial for JS beginners.

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Best Javascript-Developer-I PDF Dumps – Easily Prepare and Take Exam https://mynyml.com/best-javascript-developer-i-pdf-dumps-easily-prepare-and-take-exam/ https://mynyml.com/best-javascript-developer-i-pdf-dumps-easily-prepare-and-take-exam/#respond Tue, 07 Sep 2021 11:33:04 +0000 https://mynyml.com/best-javascript-developer-i-pdf-dumps-easily-prepare-and-take-exam/ Almost all qualified JavaScript developers struggle to pass the Salesforce Javascript-Developer-I certification exam, why is this so? This is definitely mainly because the Javascript-Developer-I (WI21) exam is among the top-rated JavaScript developer exams. Therefore, you must get the Premium Javascript-Developer-I PDF dumps which can help you prepare and perform well in Salesforce Certified JavaScript Developer […]]]>


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HTML, CSS and JavaScript (in easy steps) https://mynyml.com/html-css-and-javascript-in-easy-steps/ https://mynyml.com/html-css-and-javascript-in-easy-steps/#respond Fri, 03 Sep 2021 13:21:34 +0000 https://mynyml.com/html-css-and-javascript-in-easy-steps/ This book instructs the reader on each of the three components required to create modern web pages: HTML, CSS, and JavaScript functions for web page interactivity. Mike McGrath demonstrates how to create web pages to display text, images, lists, tables, hyperlinks, forms, audio, and video. The book is designed to appeal to programmers who want […]]]>

This book instructs the reader on each of the three components required to create modern web pages: HTML, CSS, and JavaScript functions for web page interactivity. Mike McGrath demonstrates how to create web pages to display text, images, lists, tables, hyperlinks, forms, audio, and video. The book is designed to appeal to programmers who want to quickly add webpage coding to their skills, as well as students studying web design in school or college.

Author: Mike McGrath
Editor: In a few simple steps
Date: July 2020
Pages: 480
ISBN: 978-1840788785
Print: 184078878X
Kindle: B08FBGXGF1
Audience: future web developers
Level: Introductory / Intermediate
Category: Web design and development

For book recommendations on web development, see Web Design and Development – Best CSS and HTML Books and Web Design and Development – More Books in our Programmer’s Library section.

For more Book Watch, just click.

Book Watch is I Programmer’s list of new books and is compiled using advertising material from publishers. It should not be read as a review where we provide independent assessment. Some, but not all, of the Book Watch books are eventually reviewed.

To have new titles included in Book Watch contact BookWatch@i-programmer.info

To follow @bookwatchiprog on Twitter or subscribe to the I Programmer’s Books RSS feed for each new daily addition to Book Watch and for critical news.



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How to print all permutations of a given string in C, C ++, JavaScript and Python https://mynyml.com/how-to-print-all-permutations-of-a-given-string-in-c-c-javascript-and-python/ https://mynyml.com/how-to-print-all-permutations-of-a-given-string-in-c-c-javascript-and-python/#respond Tue, 31 Aug 2021 18:15:00 +0000 https://mynyml.com/how-to-print-all-permutations-of-a-given-string-in-c-c-javascript-and-python/ A permutation is an arrangement of objects in a specific order. You can swap a string of length n into n! manners. In this article, you will learn how to find all the permutations of a given string using C ++, Python, JavaScript, and C. How do permutations work? Let’s say you got some string […]]]>

A permutation is an arrangement of objects in a specific order. You can swap a string of length n into n! manners.

In this article, you will learn how to find all the permutations of a given string using C ++, Python, JavaScript, and C.

How do permutations work?

Let’s say you got some string str with “MUO” as string values. You have been asked to view the channel permutations. Here’s how you would go about it:

Example 1: Let str = “MUO”

The permutations of “MUO” are:

  • “MUO”

  • “SOFT”

  • “UMO”

  • “UOM”

  • “OUM”

  • “OMOU”

Note the order of the values. Here is another example:

Example 2: Let str = “AB”

All permutations of “AB” are:

You can also print duplicate permutations if there are repeated characters in the given string. (ABBA, for example)

Now that you understand how permutations work, let’s see how you can find them using your favorite programming language.

To note: We have designed the following code samples to generate permutations for three strings: MUO, AB, and XYZ. If you want to use any of these codes, copy it and modify these strings to suit your project.

Related: How To Convert Characters From A String In Opposite Case With Programming

C ++ program to print all permutations of a string

Below is the C ++ program to print all permutations of a string:

// C++ program to print all
// permutations of a string
#include <bits/stdc++.h>
using namespace std;

// Function to print permutations of string
void findPermutations(string str, int leftIndex, int rightIndex)
{
if (leftIndex == rightIndex)
{
cout << str << endl;
}
else
{
for (int i = leftIndex; i <= rightIndex; i++)
{
swap(str[leftIndex], str[i]);
findPermutations(str, leftIndex+1, rightIndex);
//backtrack
swap(str[leftIndex], str[i]);
}
}
}
// Driver Code
int main()
{
string str1 = "MUO";
int size1 = str1.size();
cout << "str1: " << str1 << endl;
cout << "Permutations of " << str1 << ":" << endl;
findPermutations(str1, 0, size1-1);
string str2 = "AB";
int size2 = str2.size();
cout << "str2: " << str2 << endl;
cout << "Permutations of " << str2 << ":" << endl;
findPermutations(str2, 0, size2-1);
string str3 = "XYZ";
int size3 = str3.size();
cout << "str3: " << str3 << endl;
cout << "Permutations of " << str3 << ":" << endl;
findPermutations(str3, 0, size3-1);
return 0;
}

Go out:

str1: MUO
Permutations of MUO:
MUO
MOU
UMO
UOM
OUM
OMU
str2: AB
Permutations of AB:
AB
BA
str3: XYZ
Permutations of XYZ:
XYZ
XZY
YXZ
YZX
ZYX
ZXY

Related: How To Check If A Channel Is Balanced With Programming

Python program to print all permutations of a string

Next, is the Python code to print all permutations of a string:

# Python program to print all
# permutations of a string
def convertToString(List):
return ''.join(List)
# Function to print permutations of string
def findPermutations(s, leftIndex, rightIndex):
if leftIndex == rightIndex:
print(convertToString(s))
else:
for i in range(leftIndex, rightIndex+1):
s[leftIndex], s[i] = s[i], s[leftIndex]
findPermutations(s, leftIndex+1, rightIndex)
# backtrack
s[leftIndex], s[i] = s[i], s[leftIndex]
# Driver Code
str1 = "MUO"
size1 = len(str1)
s1 = list(str1)
print("str1:", str1)
print("Permutations of", str1,":")
findPermutations(s1, 0, size1-1)
str2 = "AB"
size2 = len(str2)
s2 = list(str2)
print("str2:", str2)
print("Permutations of", str2,":")
findPermutations(s2, 0, size2-1)
str3 = "XYZ"
size3 = len(str3)
s3 = list(str3)
print("str3:", str3)
print("Permutations of", str3,":")
findPermutations(s3, 0, size3-1)

Go out:

str1: MUO
Permutations of MUO:
MUO
MOU
UMO
UOM
OUM
OMU
str2: AB
Permutations of AB:
AB
BA
str3: XYZ
Permutations of XYZ:
XYZ
XZY
YXZ
YZX
ZYX
ZXY

Related: How To Check If Two Strings Are Anagrams Of Each Other

JavaScript program to print all permutations of a string

Here’s how to print permutations in JavaScript:

// JavaScript program to print all
// permutations of a string
// Function to swap characters of the string
function swap(str, leftIndex, i) {
let temp;
let tempArray = str.split("");
temp = tempArray[leftIndex] ;
tempArray[leftIndex] = tempArray[i];
tempArray[i] = temp;
return (tempArray).join("");
}
// Function to print permutations of string
function findPermutations(str, leftIndex, rightIndex) {
if (leftIndex == rightIndex) {
document.write(str + "<br>");
} else {
for (let i = leftIndex; i <= rightIndex; i++) {
str = swap(str, leftIndex, i);
findPermutations(str, leftIndex+1, rightIndex);
//backtrack
str = swap(str, leftIndex, i);;
}
}
}
// Driver Code
var str1 = "MUO";
var size1 = str1.length;
document.write("str1: " + str1 + "<br>");
document.write("Permutations of " + str1 + ":" + "<br>");
findPermutations(str1, 0, size1-1);
var str2 = "AB";
var size2 = str2.length;
document.write("str2: " + str2 + "<br>");
document.write("Permutations of " + str2 + ":" + "<br>");
findPermutations(str2, 0, size2-1);
var str3 = "XYZ";
var size3 = str3.length;
document.write("str3: " + str3 + "<br>");
document.write("Permutations of " + str3 + ":" + "<br>");
findPermutations(str3, 0, size3-1);

Go out:

str1: MUO
Permutations of MUO:
MUO
MOU
UMO
UOM
OUM
OMU
str2: AB
Permutations of AB:
AB
BA
str3: XYZ
Permutations of XYZ:
XYZ
XZY
YXZ
YZX
ZYX
ZXY

Related: How To Complete The FizzBuzz Challenge In 5 Programming Languages

C program to print all permutations of a string

Below is a C program that prints all the permutations of a string:

// C program to print all
// permutations of a string
#include <stdio.h>
#include <string.h>
// Function to swap characters of the string
void swap(char str[], int leftIndex, int i)
{
char temp = str[leftIndex];
str[leftIndex] = str[i];
str[i] = temp;
}
// Function to print permutations of string
void findPermutations(char str[], int leftIndex, int rightIndex)
{
if (leftIndex == rightIndex)
{
printf("%s ⁠n", str);
}
else
{
for (int i = leftIndex; i <= rightIndex; i++)
{
swap(str, leftIndex, i);
findPermutations(str, leftIndex+1, rightIndex);
//backtrack
swap(str, leftIndex, i);
}
}
}
// Driver Code
int main()
{
char str1[] = "MUO";
int size1 = strlen(str1);
printf("str1: %s ⁠n", str1);
printf("Permutations of %s: ⁠n", str1);
findPermutations(str1, 0, size1-1);
char str2[] = "AB";
int size2 = strlen(str2);
printf("str2: %s ⁠n", str2);
printf("Permutations of %s: ⁠n", str2);
findPermutations(str2, 0, size2-1);
char str3[] = "XYZ";
int size3 = strlen(str3);
printf("str3: %s ⁠n", str3);
printf("Permutations of %s: ⁠n", str3);
findPermutations(str3, 0, size3-1);
return 0;
}

Go out:

str1: MUO
Permutations of MUO:
MUO
MOU
UMO
UOM
OUM
OMU
str2: AB
Permutations of AB:
AB
BA
str3: XYZ
Permutations of XYZ:
XYZ
XZY
YXZ
YZX
ZYX
ZXY

Printing permutations is easy

In this article, you learned how to print all permutations of a string in multiple programming languages. While these sample programs aren’t the only way to handle permutations, they are a good start for those new to using them in their code.


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The 11 Best Sites for Free Online Computer Programming Courses

By using these free online computer programming courses, you can become a great programmer without a computer degree.

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Intermediate Web Designer with Java Script and Angular Skills – 1306S Evdb at Mediro ICT https://mynyml.com/intermediate-web-designer-with-java-script-and-angular-skills-1306s-evdb-at-mediro-ict/ https://mynyml.com/intermediate-web-designer-with-java-script-and-angular-skills-1306s-evdb-at-mediro-ict/#respond Thu, 26 Aug 2021 18:38:40 +0000 https://mynyml.com/intermediate-web-designer-with-java-script-and-angular-skills-1306s-evdb-at-mediro-ict/ We are looking for a UX (user experience) resource responsible for the responsive design of the solution [URL Removed] is for a long term, fixed contract with remote / desktop rotational work possible (due to lockdown regulations) The Design and User Experience (User Experience) resource is responsible for responsive design of the solution interfaces based […]]]>

We are looking for a UX (user experience) resource responsible for the responsive design of the solution [URL Removed] is for a long term, fixed contract with remote / desktop rotational work possible (due to lockdown regulations) The Design and User Experience (User Experience) resource is responsible for responsive design of the solution interfaces based on customer requirements received. This includes building the HTML front-end. Designs should provide a premium user experience.Minimum requirements

  • Working knowledge of the system of at least 3 years and more
  • Diploma in graphic and / or multimedia design General knowledge of computer science and software development
  • Java Script and Angular Skills
  • Gulp.js / Grunt.js
  • Angular (ng-router, UI Router, ng-resource) is required.
  • Working with JSON is mandatory
  • Web services
  • Version control and other development tools, for example GIT
  • Proficient in HTML, CSS and JavaScript
  • Knowledge of CSS processors such as LESS, SCSS, etc.
  • Knowledge of CSS and JavaScript frameworks e.g. Bootstrap, jQuery, etc.
  • Experience with design applications such as Adobe Photoshop and Illustrator is an asset
  • Responsive and adaptive design experience
  • SEO principles are beneficial

Familiar with:

  • Business process analysis and translation into functional specifications
  • Translate functional specifications into technical specifications
  • Database design

Find out more / Apply for this position


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How to implement client-side form validation with JavaScript https://mynyml.com/how-to-implement-client-side-form-validation-with-javascript/ https://mynyml.com/how-to-implement-client-side-form-validation-with-javascript/#respond Wed, 25 Aug 2021 13:46:00 +0000 https://mynyml.com/how-to-implement-client-side-form-validation-with-javascript/

JavaScript is one of the most popular and versatile programming languages ​​you can get started with today. It is rightly said that this programming language is the language of the web and that it is essential for adding interactivity to your websites.

The form element is one of the most used HTML elements on websites. These forms take user data and process it in the browser or server. However, it is important to validate these entries to resolve security issues and unwanted bugs.

Understanding DOM manipulation

Before proceeding with the implementation of client-side form validation with JavaScript, it is essential to understand the document object model, commonly known as “DOM”. The DOM is a standardized API that allows JavaScript to interact with the elements of an HTML web page.

Learn more: The Hidden Website Hero: Understanding the DOM

To add event listeners and retrieve user input, you will need to understand the basics of DOM manipulation. Here’s an example that shows how you can edit web page content using the DOM API and JavaScript:

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
</head>
<body>
<p id="paragraph"></p>
</body>
<script>
const paragraph = document.getElementById('parapgraph');
paragraph.innerText = 'This is a paragraph tag';
</script>
</html>

In the code above, the

the tag has an identifier of paragraph. When writing JavaScript code, you can access this element by calling the document.getElementById (‘paragraph’) method and manipulating its value.

Now that you’ve got the basics of DOM manipulation, let’s go ahead and implement form validation.

Form validation with JavaScript

There are different types of entries that you can take from a user. Text type, email type, password type, radio buttons, and checkboxes are some of the most common you may come across. Because of this vast majority of input types, you will need to use different logic to validate each one.

Before we get into validation, let’s take a moment to understand HTML forms and their importance. HTML forms are one of the primary ways of interacting with the website as they allow you to enter your data, apply changes, invoke pop-ups, submit information to a server, etc.

HTML The element is used to create these forms for users. Here’s how to validate the inputs of an HTML form:

1. Email validation

Whether you’re building an authentication system or just fetching user emails for your newsletter, it’s important to validate the email before you can store it in your database or process it. To check if an email meets all the requirements, you can use a regular expression.

HTML:

<input type="email" placeholder="email@example.io" id="email" required />

JavaScript:

const emailInput = document.getElementById('email');
const emailRegex = /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:.[a-zA-Z0-9-]+)*$/;
if (!emailInput.value.match(emailRegex)) {
alert('Invalid email address.');
}

2. Password validation

Passwords are crucial data that requires a special type of validation to ensure its security. Consider a registration form that has two fields: the password and confirmation fields. To validate these input pairs, here are some things to consider:

  • Password must be more than 6 characters long.

  • The password value and the password confirmation field must be the same.

HTML:

<input type="password" placeholder="Enter your password" id="password" required />
<input type="password" placeholder="Enter your password" id="confirm-password" required />

JavaScript:

const password = document.getElementById('password').value;
const confirmPassword = document.getElementById('confirm-password').value;
if (password.value !== confirmPassword.value) {
alert('Entered passwords do not match');
}
if (password.length < 6) {
alert('Password must be more than 6 characters long')
}

3. Radio input validation

HTML radio input is a special type of graphical control element that allows the user to choose a single option from a predefined set of mutually exclusive options. A common use case for such an entry would be gender selection. To validate such an entry, you will have to check if at least one of them is selected.

This can be achieved using logical operators such as AND (&&) and not (!) operator in this way:

HTML:

<label for="male">Male</label>
<input type="radio" id="male" name="gender" value="male" />
<label for="female">Female</label>
<input type="radio" id="female" name="gender" value="female" />
<label for="others">Others</label>
<input type="radio" id="others" name="gender" value="others" />

JavaScript:

const genders = document.getElementsByName("gender");
const validForm = false;
let i = 0;
while (!validForm && i < radios.length) {
if (radios[i].checked) validForm = true;
i++;
}
if (!validForm) alert("Must check some option!");

4. Select Entry validation

The The HTML element is used to create a drop-down list. The tags inside the item define the options available in the drop-down list. Each of these tags have a value attribute associated with them.

For the default or initial option, you can set its value to an empty string so that it is considered an invalid option. For all other options, set an appropriate value attribute. Here is an example of how you can validate a input element:

HTML:

<select id="title" required>
<option value="">Select One</option>
<option value="Mr">Mr</option>
<option value="Mrs">Mrs</option>
<option value="Ms">Ms</option>
</select>

JavaScript:

const title = document.getElementById('title');
if (title.value = "") {
alert('Please select a title');
}

5. Validation of the check boxes

Checkbox type input items are displayed by default as boxes that are checked or checked when enabled. A checkbox allows you to select unique values ​​to submit in a form. Checkboxes are a common choice for the “accept terms and conditions” entry.

To find out whether a box is checked or not, you can access the checked attribute on the entry of the checkbox. Here is an example :

HTML:

<input type="checkbox" id="terms">
<label for="terms">I agree to the terms and conditions</label>

JavaScript:

const terms = document.getElementById('terms');
if (!terms.checked) {
alert('Please agree to the terms and conditions to proceed further.');
}

Prevention is better than cure

It is always recommended that you validate any input you receive from a visitor to provide a safe and secure experience. Hackers always attempt to enter malicious data into input fields to perform cross-site scripting attacks and SQL injections.

Now that you understand how to validate your HTML inputs, why not give it a try by creating a form and implementing the strategies you saw above?


An application form
How to create a form in HTML

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The main key players in the JavaScript web framework software market: Google, Fenopix Technologies, Sencha, Tilde, Ag-Grid, etc. https://mynyml.com/the-main-key-players-in-the-javascript-web-framework-software-market-google-fenopix-technologies-sencha-tilde-ag-grid-etc/ https://mynyml.com/the-main-key-players-in-the-javascript-web-framework-software-market-google-fenopix-technologies-sencha-tilde-ag-grid-etc/#respond Sun, 22 Aug 2021 07:30:01 +0000 https://mynyml.com/the-main-key-players-in-the-javascript-web-framework-software-market-google-fenopix-technologies-sencha-tilde-ag-grid-etc/ Growth Scope Forecast: JavaScript Web Framework Software MarketThe JavaScript Web Framework Software Market was posted at xx USD ML in 2019 and is expected to increase by xx USD ML during the forecast period. The research is used to assess the JavaScript Web Frameworks software market in time-bound forecasts. Industry revenue figures for each geography […]]]>

Growth Scope Forecast: JavaScript Web Framework Software Market
The JavaScript Web Framework Software Market was posted at xx USD ML in 2019 and is expected to increase by xx USD ML during the forecast period. The research is used to assess the JavaScript Web Frameworks software market in time-bound forecasts. Industry revenue figures for each geography are included in JavaScript Web Frameworks Software Analysis Report. The JavaScript Web Frameworks Software study also includes an industry overview of emerging innovations focused on creative business models, growth opportunities, competitive strategic backdrop, and a variety of value-added products that can drive market growth. Likewise, the search presents the most recent demand estimate for the expected time period.

Competition spectrum:
Google
Fenopix Technologies
Sencha
Tilde
Ag-Grid
AnyChart
Eight Media User Experience Design Office
Paravel
Ian Lunn Conception
Bitovi
Npm
The company of sails
TrackJS
Northwoods Software
Incomejack

In addition to assessing the industry share in terms of production, development, and review, the JavaScript Web Frameworks Software study assesses the industry share in terms of demand, growth, and review. The report also details the market status and forecast by country, application, vendor, and form. JavaScript Web Frameworks Software research covers market share, market dynamics, challenges and opportunities, future trends, demand drivers, growth rate, barriers to entry and risks, the five Porter’s strengths, distribution networks and distributor analysis. JavaScript Web Frameworks Software research incorporates market volume and market value estimation. To test and quantify the total scale of the sector, top-down and bottom-up methods are used.

Find the full report and the table of contents here: @ https://www.orbisresearch.com/reports/index/global-javascript-web-frameworks-software-market-report-2020?utm_source=Poojab

This research review includes a separate study of key industry dynamics, regulation, and macro and microeconomic metrics used in this research analysis. Market analysis used this approach to determine the competitiveness of the key segment during the forecasting process. The JavaScript Web Frameworks Software market research study is categorized, described and profiled the market in terms of raw materials, classifications, product specifications, cost structures, descriptions, customer profiles, manufacturing process and applications. The study also examines key business factors including product benefits, demand, supply, cost, efficiency, capacity, and market growth structure.

The market is roughly divided into:

• Analysis by product type:
On the site
Cloud based

• Application analysis:
Individual
Business

• Segmentation by region with details on country specific developments
North America (United States, Canada, Mexico)
Europe (UK, France, Germany, Spain, Italy, Central and Eastern Europe, CIS)
Asia Pacific (China, Japan, South Korea, ASEAN, India, rest of Asia-Pacific)
Latin America (Brazil, rest of LA)
Middle East and Africa (Turkey, CCG, Rest of Middle East)

Contents
Chapter One: Presentation of the Report
1.1 Scope of the study
1.2 Key market segments
1.3 Players covered: ranking by revenue of JavaScript Web Frameworks software
1.4 Market Analysis by Type
1.4.1 Web JavaScript Framework Software Market Size Growth Rate by Type: 2020 VS 2028
1.5 Market by Application
1.5.1 JavaScript Web Frameworks Software Market Share by Application: 2020 VS 2028
1.6 Study objectives
1.7 years taken into account

Chapter Two: Growth Trends by Regions
2.1 JavaScript Web Frameworks Software Market Outlook (2015-2028)
2.2 JavaScript Web Frameworks Software Growth Trends by Regions
2.2.1 Web JavaScript Framework Software Market Size by Regions: 2015 VS 2020 VS 2028
2.2.2 Historical JavaScript Web Frameworks Software Market Share by Region (2015-2020)
2.2.3 JavaScript Web Frameworks Software Forecast Market Size by Regions (2021-2028)
2.3 Industry trends and growth strategy
2.3.1 Main market trends
2.3.2 Market Drivers
2.3.3 Market challenges
2.3.4 Porter’s five forces analysis
2.3.5 Web JavaScript Framework Software Market Growth Strategy
2.3.6 Main interviews with the main actors of JavaScript Web Frameworks software (opinion leaders)

Chapter Three: Competition Landscape by Key Players
3.1 Major Web JavaScript Frameworks Software Players by Market Size
3.1.1 Major Web JavaScript Frameworks Software Players by Revenue (2015-2020)
3.1.2 Web JavaScript Frameworks Software Revenue Market Share by Players (2015-2020)
3.1.3 JavaScript Web Frameworks Software Market Share by Business Type (Level 1, Chapter Two Level: and Level 3)
3.2 Web JavaScript Framework Software Market Concentration Ratio
3.2.1 JavaScript Web Frameworks Software Market Concentration Ratio (Chapter Five: and HHI)
3.2.2 Top Chapter Ten: and Top 5 Companies by JavaScript Web Frameworks Software Revenue in 2020
3.3 JavaScript Web Frameworks Software Key Players Headquarters and Area Served
3.4 Key Players JavaScript Web Frameworks Solution Product Software and Service
3.5 Date of Market Entry of JavaScript Web Frameworks Software
3.6 Mergers & Acquisitions, Expansion Plans

Do you have a specific question or requirement? Ask our industry [email protected] https://www.orbisresearch.com/contacts/enquiry-before-buying/4455869?utm_source=Poojab

You are looking to provoke fruitful business relationships with you!

Primary and secondary methodologies have been used to study the precise market sales as well as their breakdowns. Comprehensive primary research, such as polls, expert opinions, profiles and secondary ratings in trade journals, industry directories, paid outlets and more, has been included in the JavaScript software review Web Frameworks. In addition, the JavaScript Web Frameworks Software market study analyzes the data collected from various industry analysts and major market players around industry value chain to provide concise quantitative and qualitative insight. This research has been used to assess major players in the JavaScript Web Frameworks software market, with precise market shares estimated for primary and secondary research funding.

About Us:
Orbis Research (orbisresearch.com) is a one stop shop for all of your market research needs. We have a large database of reports from leading publishers and authors around the world. We specialize in providing personalized reports according to the requirements of our clients. We have complete information about our publishers and are therefore confident of the correctness of the industries and verticals of their specialization. This helps our clients to map their needs and we produce the perfect market research required for our clients.

Contact us:
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Senior Manager Client Engagement
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Office 600, Dallas,
Texas 75204, United States
Phone number: United States: +1 (972) -362-8199 | IND: +91 895 659 5155


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Credit: stackhive

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