JavaScript String localeCompare() Method

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JavaScript String localeCompare() Method

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Example

Compare two strings in the current locale:

var str1 = "ab";
var str2 = "cd";
var n = str1.localeCompare(str2);

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The result of n will be:

-1 // str1 is sorted before str2

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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

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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: -1 if the reference string is sorted before the compareString 0 if the two strings are equal 1 if the reference string is sorted after the compareString
JavaScript Version:	ECMAScript 1

More Examples

Example

Compare two strings in the current locale:

var str1 = "cd";
var str2 = "ab";
var n = str1.localeCompare(str2);

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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 »

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