Web/JavaScript/Reference/Global objects/Set/delete

The delete() method removes the specified element from a Set object.

Syntax

mySet.delete(value);

Parameters

value: The value to remove from mySet.

Return value

Returns true if value was successfully removed from mySet; otherwise false.

Examples

Using the delete() method

const mySet = new Set();
mySet.add('foo');

mySet.delete('bar'); // Returns false. No "bar" element found to be deleted.
mySet.delete('foo'); // Returns true.  Successfully removed.

mySet.has('foo');    // Returns false. The "foo" element is no longer present.

Let's checkout below how to delete an Object from a Set.

const setObj = new Set();   // Create a New Set.

setObj.add({x: 10, y: 20}); // Add object in the set.

setObj.add({x: 20, y: 30}); // Add object in the set.

// Delete any point with `x > 10`.
setObj.forEach(function(point){
  if (point.x > 10){
    setObj.delete(point)
  }
})

Specifications

Specification
ECMAScript (ECMA-262)The definition of 'Set.prototype.delete' in that specification.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet	Node.js
`delete`	Chrome Full support 38	Edge Full support 12	Firefox Full support 13	IE Full support 11	Opera Full support 25	Safari Full support 8	WebView Android Full support 38	Chrome Android Full support 38	Firefox Android Full support 14	Opera Android Full support 25	Safari iOS Full support 8	Samsung Internet Android Full support 3.0	nodejs Full support 0.12 Full support 0.12 Full support 0.10 Disabled' Disabled' From version 0.10: this feature is behind the `--harmony` runtime flag.

Legend

Full support: Full support
User must explicitly enable this feature.': User must explicitly enable this feature.