isInArray()function

isInArray(left: unknown, right: ImmutableArray<R>): left is R

Param	Type
`left`	`unknown`	The value to look for and narrow. required
`right`	`ImmutableArray<R>`	The array to search within. required

Return
`left is R`	`true` if `left` is an item of `right`.

Is unknown value left in array right?

Examples

isInArray(2, [1, 2, 3]) // true