10 JavaScript Coding Mistakes with solutions

10 JavaScript Coding Mistakes with solutions Not declaring variables properly:Using the wrong comparison operator:Not using semicolons:Not understanding scoping:Using “var” instead of “let” or “const”:Instead, use “let” or “const”:Using “==” instead of “===”:Not using curly braces in if statements:Using “parseFloat” instead of “parseInt”:Not handling asynchronous code properly:Example using a promise:Example using async/await:Not properly scoping variables:Example using … Read more

JavaScript Code Exercises 4

JavaScript Code Exercises 4 Exercise 1: Sum All Numbers in a RangeExercise 2: Diff Two ArraysExercise 3: Seek and DestroyExercise 4: Wherefore art thou Exercise 1: Sum All Numbers in a Range Write a function that takes an array of two numbers as input and returns the sum of all the numbers between them, inclusive. … Read more

Learn JavaScript Test your skills Answer JavaScript Quiz Questions Quiz #3 for JavaScript

JavaScript Quiz with Answers What is the difference between == and === operators in JavaScript? What is the difference between null and undefined in JavaScript? What is the difference between let and var in JavaScript? What is a closure in JavaScript? What is the difference between call() and apply() in JavaScript? What is a promise … Read more

Advanced JavaScript DOM Coding Examples

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

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

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

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

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

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

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

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