Splitting a String into an Array

String split: String.split()

The split() method in JavaScript is used to split a string into an array of substrings based on a specified delimiter.

Syntax:

string.split(separator, limit)

The parameters

1. separator: The character or regular expression used to specify where to split the string. If an empty string is used (”), the string is split into an array of individual characters.
2. limit (optional): An integer that specifies the maximum number of splits. The array will contain at most limit + 1 elements. If not specified or is negative, there is no limit to the number of splits.

Return Value:

The split() method returns an array of substrings resulting from the split.

Example

// Splitting a string based on a space separator
const str = 'Hello, world!';

const splitArray = str.split(' ');
console.log(splitArray);
// Output: ["Hello,", "world!"]

In the example above, the split() method is used to split the string ‘Hello, world!’ into an array of substrings based on the space separator. The resulting array, [“Hello,”, “world!”], is stored in the variable splitArray.

// Splitting a string based on a comma separator with a specified limit
const str = 'apple,orange,banana,grape';

const splitArray = str.split(',', 2);
console.log(splitArray);
// Output: ["apple", "orange"]

In this example, the split() method is used to split the string ‘apple,orange,banana,grape’ into an array of substrings based on the comma separator. The specified limit of 2 restricts the number of splits to at most two. The resulting array, [“apple”, “orange”], is stored in the variable splitArray.

// Splitting a string into individual characters
const str = 'Hello';

const splitArray = str.split('');
console.log(splitArray);
// Output: ["H", "e", "l", "l", "o"]

In this example, the split() method is used to split the string ‘Hello’ into an array of individual characters by using an empty string as the separator. The resulting array, [“H”, “e”, “l”, “l”, “o”], is stored in the variable splitArray.

By using the String.split() method, you can easily convert a string into an array of substrings, providing a versatile way to manipulate and process string data in JavaScript.