JavaScript DOM lessons

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

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