Currently browsing JavaScript

Thursday, August 4, 2022

How to code your own JavaScript de-duplicator

I have a new tool on getButterfly: a data de-duplicator for emails, URLs, IDs, names and more. It's written in…

Monday, July 4, 2022

JavaScript Form Validation

This JavaScript code snippet adds inline validation to any form field (input, select and textarea). Feel free to customise it…

Saturday, December 2, 2023

How to get content from another website using JavaScript

Here’s the scenario: One of my websites is static, and I need to maintain a changelog both on the website…

Tuesday, May 7, 2024

Why I removed my dark theme switcher

How I implemented a dark/light theme switcher using JavaScript and CSS for both WordPress and static websites.

Friday, June 3, 2022

JavaScript Bookmarklets Collection

Bookmarklet 1: Show Password A simple JavaScript snippet can be used to view passwords in web browsers. To use the code,…

Tuesday, May 2, 2023

How to copy web page content using innerHTML

I need to extract some data from a web page and place it on a fishing site. The source web…

Tuesday, May 17, 2022

How to Optimize a Theoretical Funnel Page Load Speed

Here’s a quick snippet to preload the next step in a theoretical funnel/workflow: PHP JavaScript

Tuesday, December 27, 2022

Numerical Integration Using JavaScript

This is a quick reminder on how to use mathematical functions inside JavaScript. Instructions Trig: sin, cos, tan, cot, sec,…

Tuesday, May 17, 2022

Random JavaScript Tutorials

I needed some structural updates for a site, and among them, I added some JavaScript snippets. I will show you…

Tuesday, May 2, 2023

How to declare a global variable inside a jQuery function

A JavaScript global variable is a variable with global scope, meaning that it is visible and accessible throughout the program, unless…

Tuesday, May 17, 2022

JavaScript Terminal

Today’s tutorial is about creating a terminal screen together with lime terminal characters in JavaScript. Let’s start with the CSS:…

Friday, June 3, 2022

Demystifying JavaScript history.back() and history.go() methods

One of my clients needed his online shop customers to be able to go back several steps with one click…