JavaScript

Create a JavaScript BlackJack Game

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The code you provided is for a simple Blackjack game in HTML and JavaScript. It creates a basic game interface with buttons to start a new game, hit, and stay. When the game starts, the dealer and player are each dealt two cards. The dealer’s second card is hidden, so the player only knows the … Read more

Top 5 JavaScript Interview Questions

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JavaScript has 7 primitive data types: In addition to primitive data types, JavaScript also has object and array data types. Hoisting is a JavaScript feature that causes all variable declarations and function declarations to be moved to the top of their scope, even if they are not actually defined until later in the code. This … Read more

Simple Canvas JavaScript Game

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The given code demonstrates a simple game where a player can move around a canvas using the arrow keys. Let’s break it down step by step: const canvas = document.getElementById(“canvas”); const ctx = canvas.getContext(“2d”); const player = { x: 250, y: 250, width: 50, height: 50, speed: 5 }; function movePlayer(event) { // Move the … Read more

JavaScript set Interval

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In JavaScript, setInterval() is a method used to repeatedly execute a function or a piece of code at a specified time interval. It takes two parameters: the function to be executed and the time delay (in milliseconds) between each execution. Here’s an example that demonstrates the usage of setInterval(): // Define a function to be … Read more

Get data from input fields as object

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Here’s an example of how you can select all input fields in HTML using JavaScript and store their values in an object: HTML: <!DOCTYPE html> <html> <head> <title>Input Fields Example</title> </head> <body> <input type=”text” id=”name” placeholder=”Name”> <input type=”text” id=”email” placeholder=”Email”> <input type=”text” id=”phone” placeholder=”Phone Number”> <button onclick=”collectInputs()”>Submit</button> <script src=”script.js”></script> </body> </html> JavaScript (script.js): function collectInputs() … Read more

URLSearchParams JavaScript Method

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URLSearchParams is a built-in JavaScript class that provides a convenient way to manipulate and extract query parameters from a URL string. It allows you to parse, modify, and construct query strings easily. This class simplifies tasks such as retrieving and updating query parameters in a URL. Here’s a detailed explanation of URLSearchParams with examples: const … Read more

JavaScript Fetch Method

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The fetch() method in JavaScript is used to make network requests and retrieve resources from a server. It returns a Promise that resolves to the response of the request, allowing you to handle the response data in various ways. Here’s an example of using the fetch() method to make a GET request and retrieve data … Read more

how to link a javascript file to html

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To link a JavaScript file to an HTML document, you can use the <script> tag. Here’s the step-by-step process: <script src=”path/to/your/script.js”></script> Replace “path/to/your/script.js” with the correct path to your JavaScript file. Make sure to include the JavaScript file after the <body> tag or use the defer attribute if you want the script to load after … Read more

JavaScript Common Questions and Answers

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Question 1: What is the difference between null and undefined in JavaScript? Answer: In summary, null is used to explicitly assign an empty value, while undefined is used when a variable has been declared but not assigned a value. Question 2: What is hoisting in JavaScript? Answer: Hoisting is a JavaScript behavior where variable and … Read more