Learn how to find the length of a string in JavaScript. The length property returns the length of a string: Read more about strings in our JavaScript Strings Tutorial. Read more about the length property in our JavaScript String length Reference. W3Schools is …

The length property returns the length of a string. The length property of an empty string is 0.

Oct 22, 2015 · How can I check the length of in String in JavaScript? Here is a small code example: if(value != null && value != "" && value.length !== 10 && !value.match(/^\d*$/)){ // do something } The expression 'value.length !== 10' doesn´t work. A String must contain at least 10 characters. How can I solve this problem?

Mar 13, 2025 · The length data property of a String value contains the length of the string in UTF-16 code units.

Nov 17, 2024 · These are the following ways to Find the Length of a String in JavaScript: This approach directly utilizes the built-in length property of strings in JavaScript, which returns the number of characters in the given string.

Oct 29, 2024 · The JavaScript length property is a fundamental feature used to determine the number of characters in a string. It is essential for various string operations, such as validation, manipulation, and iteration. Understanding how to effectively use the length property can simplify tasks like checking in

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.

In this tutorial, we learned two different approaches to find the length of a string. In the first approach, we use the length property of the String. In the second approach, we created a custom function to find the length of the string. The first method is straightforward to find the string length.

Dec 12, 2024 · In JavaScript, you can easily get the string length by using the length property. This property returns the total number of characters in the string, including spaces and special characters. let str = "Hello, World!"; console. log (str. length); // …

Apr 10, 2025 · In this article, you will learn how to check the length of a string in JavaScript using the length property. You will also learn how to check the size of a string, which is essential for input validation, loop through characters, and handle size-specific operations.