JavaScript DOM lessons

Advanced JavaScript DOM Coding Examples

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How do you add an event listener to an element in JavaScript?What is the difference between innerHTML and textContent in JavaScript?How do you create a new element in the DOM using JavaScript?What is the difference between childNodes and children in JavaScript?How do you remove an element from the DOM using JavaScript?How do you check if … Read more

110 JavaScript Quiz Questions with solutions PDF download Test your Knowledge

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110 JavaScript Quiz Questions Test your Knowledge of JavaScript code examples and solutions to questions about JavaScript #javascript #JavaScriptQuiz #QuizTime #WebDevelopment #CodingChallenge #Programming #FrontEndDevelopment #JavaScriptCoding #TechTrivia #JavaScriptSkills #CodeChallenge #JavaScriptBasics #JavaScript101. What does the “forEach” method do in JavaScript?What does the “NaN” value represent in JavaScript?What does the “this” keyword refer to in JavaScript?What does the … Read more

HTML5 Canvas JavaScript Code Examples

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JavaScript HTML5 Canvas Examples Drawing a rectangleDrawing a circleDrawing a lineDrawing textDrawing an imageSetting the fill styleSetting the stroke styleDrawing a pathSetting the line widthSetting the line cap style Drawing a rectangle <canvas id=”myCanvas”></canvas> const canvas = document.getElementById(‘myCanvas’); const ctx = canvas.getContext(‘2d’); ctx.fillRect(10, 10, 50, 50); This code creates a canvas element with an id … Read more

JavaScript DOM examples

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Creating an elementAppending an elementRemoving an elementChanging an element’s text contentChanging an element’s HTML contentModifying an element’s attributesAccessing an element’s attributesAdding an event listener to an elementRemoving an event listener from an elementTraversing the DOM JavaScript DOM Examples Creating an element const newElement = document.createElement(‘div’); This code creates a new div element in the DOM. … Read more

100+ JavaScript Questions and Solutions PDF Guide Quiz test your knowledge of JavaScript

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100+ JavaScript Questions ANSWERS What is the difference between null and undefined in JavaScript? null represents a deliberate non-value or empty object reference, while undefined represents an uninitialized or missing value. What is the purpose of the “use strict” directive in JavaScript? The “use strict” directive is used to enable strict mode, which enforces stricter … Read more

10 Common JavaScript Questions with Code Solutions Free Lesson Learn JavaScript

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Write a function that converts a string to title case (i.e., capitalizes the first letter of each word) in JavaScript.Write a function that calculates the sum of all digits in a given integer in JavaScript.Write a function that removes all whitespace from a given string in JavaScript.Write a function that checks whether a given year … Read more

JavaScript Coding Exercise Random quote generator

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Random quote generator Example of a random quote generator using HTML, CSS, and JavaScript. HTML: <!DOCTYPE html> <html> <head> <meta charset=”utf-8″> <title>Random Quote Generator</title> <link rel=”stylesheet” href=”style.css”> </head> <body> <div class=”container”> <h1>Random Quote Generator</h1> <p id=”quote”></p> <button id=”btn”>Generate Quote</button> </div> <script src=”script.js”></script> </body> </html> In this HTML code, we have created a simple structure for … Read more

HTML5 JavaScript Animation Bouncing Ball Example and Paddle Game

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Bouncing Ball Game JavaScript HTML5 Canvas Bouncing Ball Animation and Game with JavaScript Bouncing Ball using HTML5 Canvas <!DOCTYPE html> <html> <head> <meta charset=”utf-8″> <title>Ball Bounce</title> <style> canvas { border: 1px solid black; } </style> </head> <body> <canvas id=”canvas” width=”500″ height=”500″></canvas> <script> // Get canvas element and context var canvas = document.getElementById(“canvas”); var ctx = … Read more

JavaScript Coding Exercises

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JavaScript Coding Exercises JavaScript coding exercise that involves working with arrays and string manipulation: Exercise: Write a function that takes in an array of words and returns a new array containing only the words that have all their letters in alphabetical order. Example: const words = [‘hello’, ‘world’, ‘abcedf’, ‘goodbye’]; console.log(wordsInOrder(words)); // [‘abcedf’] Explanation: To … Read more

JavaScript DOM Code Examples PDF Download Laurence Svekis

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JavaScript DOM Code Examples What is the DOM in JavaScript and how can we access it? The Document Object Model (DOM) is a programming interface for web documents. It represents the page so that programs can change the document structure, style, and content. We can access the DOM using JavaScript’s document object. Here’s an example: … Read more