JavaScript

const http = require(‘http’); // or ‘https’ for https:// URLs const fs = require(‘fs’); const file = fs.createWriteStream(“file.jpg”); const request = http.get(“http://i3.ytimg.com/vi/J—aiyznGQ/mqdefault.jpg”, function(response) { response.pipe(file);… Read More →

Use the following code to allow only numeric input <input type=’text’ onkeypress=’validate(event)’ /> <script> function validate(evt) { var theEvent = evt || window.event; // Handle… Read More →

// Check document.getElementById(“checkbox”).checked = true; // Uncheck document.getElementById(“checkbox”).checked = false; jQuery (1.6+): // Check $(“#checkbox”).prop(“checked”, true); // Uncheck $(“#checkbox”).prop(“checked”, false); jQuery (1.5-): // Check $(“#checkbox”).attr(“checked”,… Read More →

US Zip Codes: /(^\d{5}$)|(^\d{5}-\d{4}$)/ var isValidZip = /(^\d{5}$)|(^\d{5}-\d{4}$)/.test(“90210”);

To format a date use the following code –  <script type=”text/javascript”> var options = { weekday: ‘long’, year: ‘numeric’, month: ‘long’, day: ‘numeric’ }; var… Read More →

This comprehensive guide will explore the JavaScript for loop from fundamental concepts to advanced implementation patterns. As one of the most essential control flow statements… Read More →