JavaScript Set isSubsetOF()
Example
const A = new Set(['a','b','c']);
const B = new Set(['b','c','d']);
let answer = A.isSubsetOf(B);
Try it Yourself »
const B = new Set(['b','c','d']);
let answer = A.isSubsetOf(B);
Description
The isSubsetOf() method returns true
if all elements in this set are elements in the argument set:
Subset
Syntax
isSubsetOf(set)
Parameters
Parameter
Description
set
Required.
The set to test against.
The set to test against.
Return Value
Type
Description
Boolean
true
if all elements in this set are elements in the argument set, otherwise false.
Set Logic Metods:
See Also:
Browser Support
The isSubsetOf() method is supported in all modern browsers since June 2024:
| Chrome 122 | Edge 122 | Firefox 127 | Safari 17 | Opera 108 |
| Feb 2024 | Feb 2024 | Jun 2024 | Sep 2023 | Mar 2024 |