JavaScript Tutorial

Converting a string to a floating-point number with a fixed number of decimal places is a common requirement in JavaScript, especially when dealing with financial data, user input, or formatted output. This guide […]

Adding custom JavaScript to your Squarespace website can enhance functionality, improve user experience, and allow you to implement features that aren’t available through the built-in tools. This guide will walk you through various

Converting strings to numbers is a common task in JavaScript, particularly when dealing with user input, form data, or APIs that return numeric values as strings. This guide covers various methods to convert

In JavaScript, the forEach loop is used to iterate over an array. However, there might be situations where you need to limit the number of iterations. While forEach itself doesn’t provide a built-in

In JavaScript, == and === are both used to compare values, but they differ in how they handle data types. Understanding the difference between these two comparison operators is essential to avoid bugs

The “Uncaught TypeError: Cannot read properties of undefined (reading ‘map’)” error occurs when you try to use the map() function on a variable that is undefined or not an array. This error is

Extracting a substring between two specific characters in a string is a common task in JavaScript. This guide will cover multiple methods to achieve this, including using split(), substring(), and regular expressions. To

Converting a string of numbers into an array is a common task in JavaScript, especially when dealing with data processing or form inputs. This guide covers multiple methods to achieve this, including using

Getting the width and height of a browser window in JavaScript is a common task in web development, especially for creating responsive designs or handling dynamic content. This guide will explore different methods

Adding commas between numbers in JavaScript is a common requirement, especially when formatting large numbers for better readability. This guide will explore different methods to achieve this, including using toLocaleString(), regular expressions, and

The typeof operator in JavaScript is a simple but powerful tool that allows you to determine the type of a given variable or expression. This guide will help you understand how to use