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JavaScript String slice() method

String Object Reference JavaScript String Object

Example

Extract parts of a string:

var str = "Hello world!";
var res = str.slice(1,5);

The result of res will be:

ello

Try it yourself »

Definition and Usage

The slice() method extract parts of a string and returns the extracted parts in a new string.

Use the start and end parameters to specify the part of the string you want to extract.

The first character has the position 0, the second has position 1, and so on.

Tip: Use a negative number to select from the end of the string.


Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The slice() method is supported in all major browsers.


Syntax

string.slice(start,end)

Parameter Values

Parameter Description
start Required. The position where to begin the extraction. First character is at position 0
end Optional. The position (up to, but not including) where to end the extraction, If omitted, slice() selects all characters from the start-position to the end of the string

Return Value

Type Description
String The extracted part of the string

Technical Details

JavaScript Version: 1.0


More Examples

Example

Extract the whole string:

var str = "Hello world!";
var res = str.slice(0);

The result of res will be:

Hello world!

Try it yourself »

Example

Extract from position 3, and to the end:

var str = "Hello world!";
var res = str.slice(3);

The result of res will be:

lo world!

Try it yourself »

Example

Extract the characters from position 3 to 8:

var str = "Hello world!";
var res = str.slice(3,8);

The result of res will be:

lo wo

Try it yourself »

Example

Extract only the first character:

var str = "Hello world!";
var res = str.slice(0,1);

The result of res will be:

H

Try it yourself »

Example

Extract only the last character:

var str = "Hello world!";
var res = str.slice(-1);

The result of res will be:

!

Try it yourself »


String Object Reference JavaScript String Object

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