Set.prototype.add()
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The add()
method of Set
instances inserts a new element with a specified value in to this set, if there isn't an element with the same value already in this set
Try it
Syntax
js
add(value)
Parameters
value
-
The value of the element to add to the
Set
object.
Return value
The Set
object with added value.
Examples
Using the add() method
js
const mySet = new Set();
mySet.add(1);
mySet.add(5).add("some text"); // chainable
console.log(mySet);
// Set [1, 5, "some text"]
Specifications
Specification |
---|
ECMAScript Language Specification # sec-set.prototype.add |
Browser compatibility
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