Read more about strings in our JavaScript Strings Tutorial. Read more about the length property in our JavaScript String length Reference.

Jul 10, 2025 · Description This property returns the number of code units in the string. JavaScript uses UTF-16 encoding, where each Unicode character may be encoded as one or two code units, so it's …

Jul 23, 2025 · Another approach to determine the length of a given string in JavaScript is by utilizing the spread operator (...) along with the reduce () method. This method is less conventional but …

In this tutorial, you will learn about the JavaScript String length property with the help of examples. The JavaScript String length property returns the number of characters in a string.

Learn to accurately determine the length of a string in JavaScript, handling immutability, Unicode complexities, and using methods like Array.from for accurate results.

Feb 11, 2026 · Learn about javascript string length with practical code examples, tips, and common pitfalls. A hands-on guide for developers.

Feb 5, 2025 · The length property of a JavaScript string returns the number of characters it contains. This includes letters, numbers, spaces, special characters, and even escape sequences (like \n for a …

Oct 4, 2024 · The JavaScript String.length property returns the number of characters in a string, including spaces and special characters. It's an easy way to measure string length and is widely …

The length property returns an integer value that represents the number of characters in the string. If the string is an empty string, the length property will return 0.

This tutorial introduces the length property of JavaScript's String object. The length property measures the number of characters in a given string: letters, numbers, spaces, punctuation…