JavaScript

The JavaScript DOM 15 Simple Code Examples

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The JavaScript Document Object Model (DOM) is a programming interface for HTML and XML documents. It represents the structure of a document as a tree of objects, with each object (or “node”) representing a part of the document, such as an element, an attribute, or text content. The DOM allows developers to access and manipulate … Read more

How to Create Page Elements with JavaScript

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Create Page Elements with JavaScript How to Create Page Elements and make them Interactive with Event LIsteners There are several ways to create page elements with JavaScript, including: Using the document.createElement() method, which creates a new element with the specified tag name. For example, the following code creates a new div element: let newDiv = … Read more

Create an interactive table list of item object values from a JavaScript array.

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Create a list of items within a table using JavaScript.  Data is contained within an array with object values. <!DOCTYPE html> <html> <head>    <title>Learn JavaScript</title>    <style>        table{            width:100%;        }        td:first-child{            width:10%;        }        td:last-child{            width:10%;        }        td{            border: 1px solid #ddd;        }    </style> </head> <body>    <h1>Learn JavaScript Course </h1>    <div>        <input type=”text” id=”addFriend” >        <input type=”button” … Read more

JavaScript Create Element List

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The document.createElement() method in JavaScript is used to create a new HTML element with a specified tag name. The method takes a single argument, which is the tag name of the element to be created. For example, document.createElement(“div”) creates a new div element. The newly created element can be accessed and modified through the DOM … Read more

Learn To Code JavaScript Free PDF 2023 Volume 2

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JavaScript Closure Explained https://youtu.be/7vyHA0aODeU A closure in JavaScript is a function that has access to variables in its parent scope, even after the parent function has returned. Closures are created when a function is defined inside another function, and the inner function retains access to the variables in the outer function’s scope. Here is an … Read more

JSON and JavaScript

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JavaScript Object Notation (JSON)  JavaScript Object Notation (JSON) is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse and generate. It is based on a subset of the JavaScript Programming Language, Standard ECMA-262 3rd Edition – December 1999. JSON is a text format that is … Read more

JavaScript Closure

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JavaScript Closure Explained A closure in JavaScript is a function that has access to variables in its parent scope, even after the parent function has returned. Closures are created when a function is defined inside another function, and the inner function retains access to the variables in the outer function’s scope. Here is an example … Read more

JavaScript Coding Exercises Vol 1 2023

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Sample JavaScript Code Laurence Svekis JavaScript Closure A closure in JavaScript is a function that has access to the variables in its parent scope, even after the parent function has completed execution. This allows for data to be “closed over” or remembered by the inner function, even after the outer function has returned. For example: … Read more

JavaScript Image Gallery and Dynamic Image Gallery using page classes or create page elements on the fly with code

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Here is an example of a JavaScript image gallery maker that creates a simple image gallery with prev/next buttons to navigate through the images: <div id=”gallery”>   <img src=”image1.jpg” id=”current-image”>   <button id=”prev-button”>Prev</button>   <button id=”next-button”>Next</button> </div> <script>   var images = [“image1.jpg”, “image2.jpg”, “image3.jpg”, “image4.jpg”];   var currentIndex = 0;   var gallery = document.getElementById(“gallery”);   var currentImage = document.getElementById(“current-image”);   var … Read more

How to create a simple JavaScript game from scratch Lock Combo Guessing Game with source code

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Lock Combo Guessing Game Dynamic number of lock slots, guess the correct combination to open the lock. When the guess is incorrect the background of the lock slot will be blue for too low and red for too high. Use the hints to select and guess the correct values for each slot. Once all the … Read more