Welshman Docs / @welshman/lib / ffirst

Function: ffirst()

ffirst<T>(xs, ...args): undefined | T

Defined in: packages/lib/src/Tools.ts:381

Returns the first element of the first array in a nested array

Type Parameters

T

T

Parameters

xs

Iterable<Iterable<T, any, any>>

Array of arrays

args

...unknown[]

Returns

undefined | T

First element of first array or undefined