JS & Node

Welcome to a tutorial on how to create a wizard form with pure HTML and Javascript. Need to create a simple wizard form? Only to find crazy complex and bloated ones on the Internet? Here is a simple one that I made – Read on for the example!     TABLE OF CONTENTS Wizard Form

Welcome to a quick tutorial on how to format a number as a currency string in Javascript. Need to display a number in a “nice currency format” after some calculations? The easy ways to format a number as a currency string in Javascript are: Use the native number format object. var amt = 12345; var

Welcome to a quick tutorial on how to do case-insensitive string comparison in Javascript. By default, the == comparison operator in Javascript is case-sensitive. Just how can we do a case-insensitive comparison in Javascript then? The common ways to do a case-insensitive string comparison in Javascript are: Change both strings to lowercase – if (FIRST.toLowerCase()

Welcome to a quick tutorial on how to add voice commands to a website using Javascript speech recognition. Ever wonder if it is possible to drive a website using voice commands? Yes, we can use speech recognition and run commands with it… It is also surprisingly pretty easy to do. Read on for an example!

Welcome to a tutorial on how to create a simple keylogger with Javascript and PHP. So you need to capture all the keys that a user pressed on your website – For user case testing or for a project? Well, keyloggers are actually quite simple, and this guide will walk you through how to create one, step-by-step.

Welcome to a quick tutorial and example on how to download an HTML canvas as an image in Javascript. So you have an HTML canvas that you want to offer as a download – No problem, we can do that with a few lines of code. To download a canvas as an image file in

Welcome to a tutorial on how to pass variables between pages in Javascript. Need to pass some data between different pages? An easy way to pass variables between pages is to use a query string: On the first page: var para = new URLSearchParams(); para.append(“KEY”, “VALUE”); location.href = “HTTP://SITE.COM/PAGE.HTML?” + para.toString(); On the second page:

Welcome to a quick tutorial on how to check if a value exists in an object in Javascript. So you have probably tried to do a includes(“VALUE”) to check if an object contains a certain value. But as it turns out, objects don’t have that very convenient function. The common ways to check if a

Welcome to a short tutorial on how to add leading and trailing zeroes to numbers in Javascript. So you have some numbers that require padding of zeroes? The easy way to add leading or trailing zeroes in Javascript is to: Concatenate the number with a string of zeroes. var num = “000” + 123; var