The entries()
method returns a new Iterator object that contains an array of [value, value]
for each element in the Set
object, in insertion order. For Set
objects there is no key
like in Map
objects. However, to keep the API similar to the Map
object, each entry has the same value for its key and value here, so that an array [value, value]
is returned.
The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.
Syntax
mySet.entries()
Return value
A new Iterator
object that contains an array of [value, value]
for each element in the given Set
, in insertion order.
Examples
Using entries()
var mySet = new Set(); mySet.add('foobar'); mySet.add(1); mySet.add('baz'); var setIter = mySet.entries(); console.log(setIter.next().value); // ["foobar", "foobar"] console.log(setIter.next().value); // [1, 1] console.log(setIter.next().value); // ["baz", "baz"]
Specifications
Specification |
---|
ECMAScript (ECMA-262) The definition of 'Set.prototype.entries' in that specification. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | Server | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
entries | Chrome Full support 38 | Edge Full support 12 | Firefox Full support 24 | IE No support No | Opera Full support 25 | Safari Full support 8 | WebView Android Full support 38 | Chrome Android Full support 38 | Firefox Android Full support 24 | Opera Android Full support 25 | Safari iOS Full support 8 | Samsung Internet Android Full support 3.0 | nodejs Full support 0.12 |
Legend
- Full support
- Full support
- No support
- No support