JavaScript Collator : Object

constructor

Collator provides language aware comparison of Strings for sorting and searching. Available through Intl.Collator.

Spec

Collator([locales : Array<String>, [options : Object]]) : Collator

Same as new Intl.Collator(locales, options).

Constructors

new Collator([locales : Array<String>, [options : Object]]) : Collator

options : {

caseFirst	Boolean
ignorePunctuation	Boolean
localeMatcher	String	One of `'basic'` or `'best fit'`.
numeric	Boolean
sensitivity	String	One of `'base'`, `'accent'`, `'case'`, or `'variant'`.
usage	String	One of `'sort'` or `'search'`

}

Example:

Run

Results:

Instance Methods

compare(value1 : String, value2 : String) : Number

Compares two string values to determine which should come first if they were sorted alphabetically according to the locales of the Collator. Returns 0 if value1 is the same as value2, a negative value if value1 should come before value2, and a positive value if value1 should come after value2. Can be passed to Array.sort() to sort a list of strings.

Example:

var collator = Intl.Collator();

console.log(collator.compare('a', 'a'));
console.log(collator.compare('a', 'b'));
console.log(collator.compare('b', 'a'));

var letters = ['c', 'a', 'd', 'b'];
console.log(letters.sort(collator.compare));

Run

Results:

resolvedOptions() : Object

return : {

caseFirst	Boolean
collation	String
ignorePunctuation	Boolean
locale	String
numeric	Boolean
sensitivity	String
usage	String

}

Example:

var options = Intl.Collator().resolvedOptions();
for (var property in options) {
  console.log(property + ': ' + options[property]);
}

Run

Results:

Collator Methods

supportedLocalesOf(locales : Array<String>, [options : Object]) : Array<String>

options : {

localeMatcher String One of 'basic' or 'best fit'.

}

Example:

Run

Results:

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