Coding Help Tips Resources Tutorials
Google Apps Scripts and Web Development Tutorials and Resources by Laurence Svekis
The innerHTML property is commonly used to retrieve or set the HTML content of an element in JavaScript. However, it does not work directly with input fields because input fields, such as <input> and <textarea>, do not have closing tags and cannot contain HTML content. To get or set the value of an input field, … Read more
HTML: <!DOCTYPE html> <html> <head> <title>Random Answer Generator</title> <link rel=”stylesheet” type=”text/css” href=”styles.css”> </head> <body> <h1>Random Answer Generator</h1> <input type=”text” id=”question” placeholder=”Enter your question”> <button id=”generateBtn”>Generate Answer</button> <div id=”message”></div> <script src=”script.js”></script> </body> </html> CSS (styles.css): body { font-family: Arial, sans-serif; text-align: center; } h1 { color: #333; } input[type=”text”] { padding: 8px; margin-top: 10px; font-size: 16px; … Read more
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
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
The getBoundingClientRect() method in JavaScript returns a DOMRect object that represents the position and size of an element relative to the viewport. The properties of the DOMRect object include coordinates and dimensions, which are often expressed as floating-point numbers (decimal places). The reason getBoundingClientRect() returns decimal values is because it provides sub-pixel accuracy. In modern … Read more
In JavaScript, when an HTML element has an id attribute defined, it automatically becomes available as a global variable in the DOM (Document Object Model). This means you can directly access that element using its id as a variable without the need for any explicit lookups or queries. For example, if you have an HTML … Read more
You can use the FormData API in JavaScript. Here’s an example of how you can serialize form data: function serializeFormData(form) { var formData = new FormData(form); var serializedData = {}; for (var [name, value] of formData) { if (serializedData[name]) { if (!Array.isArray(serializedData[name])) { serializedData[name] = [serializedData[name]]; } serializedData[name].push(value); } else { serializedData[name] = value; } … Read more
Using == instead of ===Not using const and letNot using semicolonsNot handling errorsNot using strict modeNot using curly bracesNot using Array.prototype.forEach()Not using const when defining functionsNot using the let keyword in for loopsNot using === or !== with null or undefined Using == instead of === Using == instead of === can lead to unexpected … Read more
top 10 coding mistakes with JavaScript and how to avoid them: #javascript #learnjavascript #javascripttutorial #javascriptbeginner #javascriptintermediate #javascriptadvanced #javascripttips #javascripttricks #javascriptcode #javascriptproblems #javascriptchallenges #javascriptdom #javascriptajax #javascriptjquery #javascriptnode #javascriptreact #javascriptangular 1. Not declaring variables. When a variable is not declared, it is considered a global variable. This means that it can be accessed from anywhere in the … Read more
Learn to Code JavaScript Find the largest number in an array:Check if a string is a palindrome:Calculate the sum of an array:Check if a number is even or odd:Reverse a string:Find the factorial of a number:Write a function to check if a given number is even or odd.Write a function to reverse a string.Write a … Read more