array-includes-x
Determines whether an array includes a certain element.
module.exports
⇒ boolean
⏏
This method determines whether an array includes a certain element, returning true or false as appropriate.
Kind: Exported member
Returns: boolean
- true
if searched element is included; otherwise false
.
Throws:
TypeError
Ifarray
isnull
orundefined
.
Param | Type | Description |
---|---|---|
array | Array |
The array to search. |
searchElement | * |
Element to locate in the array . |
[fromIndex] | number |
The position in this array at which to begin searching for searchElement. A negative value searches from the index of array.length + fromIndex by asc. Defaults to 0. |
Example
; const subject = 2 3 undefined true 'hej' null 2 false 0 -0 NaN;console; // trueconsole; // falseconsole; // trueconsole; // false