String.length

What is String.length in JavaScript?

String.length is a property in JavaScript that returns the length of a string. The length of a string is the number of characters in it.

For example, if the string is "Hello", then the length of the string is 5.

Using String.length in JavaScript

To use String.length in JavaScript, you simply need to call it on a string:

let myString = "Hello";
console.log(myString.length); // Output: 5

In the above example, we first define a variable named 'myString' and assign it a value of "Hello". We then call 'myString.length' and log the result to the console, which is 5.

Other ways to get the length of a string

Aside from using String.length, there are other ways to get the length of a string in JavaScript. One way is to convert the string to an array and then use the array's length property:

let myString = "Hello";
let myArray = Array.from(myString); // Convert string to array
console.log(myArray.length); // Output: 5

In the above example, we first define a variable named 'myString' and assign it a value of "Hello". We then convert the string to an array using the Array.from() method and assign it to a new variable named 'myArray'. We then log 'myArray.length' to the console, which is 5.

Another way to get the length of a string is to split the string into an array using a separator and then use the resulting array's length property:

let myString = "Hello";
let myArray = myString.split(""); // Split string into array
console.log(myArray.length); // Output: 5

In the above example, we first define a variable named 'myString' and assign it a value of "Hello". We then split the string into an array using an empty string as the separator and assign it to a new variable named 'myArray'. We then log 'myArray.length' to the console, which is 5.