findIndex
findIndex<
A>(predicate): (data) =>Option<number>
Defined in: Core/Arr.ts:111
Returns the index of the first element matching the predicate, or None.
Type Parameters
Section titled “Type Parameters”A
Parameters
Section titled “Parameters”predicate
Section titled “predicate”(a) => boolean
Returns
Section titled “Returns”(
data):Option<number>
Parameters
Section titled “Parameters”readonly A[]
Returns
Section titled “Returns”Option<number>