JavaScript String slice() method
Example
Extract parts of a string:
var str = "Hello world!";
var res = str.slice(1,5);
The result of res will be:
ello
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More "Try it Yourself" examples below.
Definition and Usage
The slice() method extracts 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
| Method | |||||
|---|---|---|---|---|---|
| slice() | Yes | Yes | Yes | Yes | Yes |
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 |
Technical Details
| Return Value: | A String, representing the extracted part of the string |
|---|---|
| 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!
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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!
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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 woTry 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
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Example
Extract only the last character:
var str = "Hello world!";
var res = str.slice(-1);
The result of res will be:
!
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JavaScript String Reference
