Example
Compare two strings in the current locale:
var str1 = "ab";
var str2 = "cd";
var n = str1.localeCompare(str2);
The result of n will be:
-1 // str1 is sorted before str2
Try it Yourself »
More "Try it Yourself" examples below.
Definition and Usage
The localeCompare() method compares two strings in the current locale.
The locale is based on the language settings of the browser.
The localeCompare() method returns a number indicating whether the string comes before, after or is equal as the compareString in sort order.
Browser Support
| Method | |||||
|---|---|---|---|---|---|
| localeCompare() | Yes | Yes | Yes | Yes | Yes |
Syntax
string.localeCompare(compareString)
Parameter Values
| Parameter | Description |
|---|---|
| compareString | Required. The string to compare with |
Technical Details
| Return Value: | A Number, indicating whether the reference string comes before, after or
is the same as the compareString in sort order.
Returns one of three values:
|
|---|---|
| JavaScript Version: | 1.2 |
More Examples
Example
Compare two strings in the current locale:
var str1 = "cd";
var str2 = "ab";
var n = str1.localeCompare(str2);
The result of n will be:
1 // str1 is sorted after str2
Try it Yourself »
Example
Compare two equal strings in the current locale:
var str1 = "ab";
var str2 = "ab";
var n = str1.localeCompare(str2);
The result of n will be:
0 // the two strings are equal
Try it Yourself »
< JavaScript String Reference