JavaScript String split() Method

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JavaScript String split() Method

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Example

Split a string into an array of substrings:

var str = "How are you doing today?";

var res = str.split(" ");

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The result of res will be an array with the values:

How,are,you,doing,today?

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More "Try it Yourself" examples below.

Definition and Usage

The split() method is used to split a string into an array of substrings, and
returns the new array.

Tip: If an empty string ("") is used as the separator, the string is split between each character.

Note: The split() method does not change the original
string.

Browser Support

Method
split()	Yes	Yes	Yes	Yes	Yes

Syntax

string.split(separator, limit)

Parameter Values

Parameter	Description
separator	Optional. Specifies the character, or the regular expression, to use for splitting the string. If omitted, the entire string will be returned (an array with only one item)
limit	Optional. An integer that specifies the number of splits, items after the split limit will not be included in the array

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Technical Details

Return Value:	An Array, containing the splitted values
JavaScript Version:	ECMAScript 1

More Examples

Example

Omit the separator parameter:

var str = "How are you doing today?";

var res = str.split();

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The result of res will be an array with only one value:

How are you doing today?

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Example

Separate each character, including white-space:

var str = "How are you doing today?";

var res = str.split("");

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The result of res will be an array with the values:

H,o,w, ,a,r,e, ,y,o,u, ,d,o,i,n,g, ,t,o,d,a,y,?

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Example

Use the limit parameter:

var str = "How are you doing today?";

var res = str.split(" ", 3);

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The result of res will be an array with only 3 values:

How,are,you

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Example

Use a letter as a separator:

var str = "How are you doing today?";

var res = str.split("o");

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The result of res will be an array with the values:

H,w are y,u d,ing t,day?

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Try it Yourself »

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