title | tags |
---|---|
includesAll |
array,beginner |
Returns true
if all the elements in values
are included in arr
, false
otherwise.
- Use
Array.prototype.every()
andArray.prototype.includes()
to check if all elements ofvalues
are included inarr
.
const includesAll = (arr, values) => values.every(v => arr.includes(v));
includesAll([1, 2, 3, 4], [1, 4]); // true
includesAll([1, 2, 3, 4], [1, 5]); // false