Learn how to detect undefined object properties in JavaScript the correct way.

Here are two quick and elegant ways to check if a string is empty in Python.

Pretty-printing JSON objects in pretty easy and customizable in JavaScript. Here's the gist of it.

Let's have a look at how to check if a string contains a substring in JavaScript.

You've probably come across the double negation operator (!!) before, but do you know what it does?

Returns the human-readable format of the given number of milliseconds.

Creates a styled checkbox with animation on state change.

A hover effect where the gradient follows the mouse cursor.

Displays an image overlay effect on hover.

Displays a menu overlay when the user hovers over the image.