JavaScript Set add()
The add() Method
If you add equal elements, only the first will be saved:
Example
letters.add("a");
letters.add("b");
letters.add("c");
letters.add("c");
letters.add("c");
letters.add("c");
letters.add("c");
letters.add("c");
Try it Yourself »
Description
The add() method inserts a new element in the set.
Syntax
set.add(value)
Parameters
| Parameter | Description |
| value | Required. The value to add. |
Return Value
| Type | Description |
| Set | A set object with the added value. |
Browser Support
set.add() is an ECMAScript6 (ES6) feature.
ES6 (JavaScript 2015) is supported in all modern browsers since June 2017:
| Chrome 51 | Edge 15 | Firefox 54 | Safari 10 | Opera 38 |
| May 2016 | Apr 2017 | Jun 2017 | Sep 2016 | Jun 2016 |
set.add() is not supported in Internet Explorer.
