Function indexOf

indexOf<T>(
    array: ArrayLike<T>,
    item: T,
    equalityComparer?: EqualityComparison<T>,
): number
Checks to see where the provided array contains an item/value. If the array value is null, then -1 is returned.
Type Parameters
- T
Parameters
- array: ArrayLike<T>
- item: T
- equalityComparer: EqualityComparison<T> = areEqual
Returns number
- Defined in arrayUtility.ts:38