Splitting strings in JavaScript

Syntax of the Split Method in JavaScript

Following is the syntax of split() method:

string.split(separator, limit)

• separator (optional): the string or Regular Expression is used to split the string. If no delimiter is specified, the entire string becomes one array element. If the separator is the empty string (''), each character of the string is separated
• limit (optional): an integer indicating the number of splits in the given string. If a string remains unchecked after the limit is reached, it is not displayed in the array

Split Method Examples in JavaScript

Below you can see more examples splitting a string in JavaScript:

Split string to character array

let str = 'JavaScript';

console.log(str.split(''));

// output: ['J', 'a', 'v', 'a', 'S', 'c', 'r', 'i', 'p', 't']

Split string by space

let str = 'JavaScript Split String';

console.log(str.split(' '));

// output: ['JavaScript', 'Split', 'String']

Limiting the number of splits

let str = 'JavaScript Split String';

console.log(str.split(' ', 1));

// output: ['JavaScript']

Split string using a comma separator

let str = 'This,is,a,comma,separator,example';

console.log(str.split(','));

// output: ['This', 'is', 'a', 'comma', 'separator', 'example']

Split string using Regular Expression

let date = "19-02-2022";

console.log(date.split(/[.,\/ -]/));

// output: ['19', '02', '2022']

Split strings by capital letters using Regular Expression

let str = 'JavaScriptSplitString';

console.log(str.split(/(?=[A-Z])/));

// output: ['Java', 'Script', 'Split', 'String']

Split string using a slash as a separator

let str = 'This/is/slash/example';

console.log(str.split(/[\\\/]/));

// output: ['This', 'is', 'slash', 'example']

Split a string using an array of different delimiters

let str = 'JavaScript+Split-String';
let separators = [' ', '\\\+', '-', '\\\(', '\\\)',
'\\*', '/', ':', '\\\?'];

let result = str.split(new RegExp(separators.join('|'), 'g'));
console.log(result);

// output: ['JavaScript', 'Split', 'String']

How to convert array to string in JavaScript?

The array.join() method is the opposite of the string.split() method. The main difference between the join() and split() methods is that the join() method is used to concatenate array elements into a string, while the split() method is used to split a string into an array using a delimiter.

let array = ['JavaScript', 'Join', 'String'];

console.log(array.join());

// output: JavaScript,Join,String

See also

• How do I check if a string contains a substring in JavaScript?
• How do I convert array to string in JavaScript?
• How do I get the length of a string in JavaScript?
• How do I concatenate strings in JavaScript?
• How do I split a string in JavaScript?