firstArrayItem

Returns the first item in the array, collection or enumerable object.

Signature

firstArrayItem<T>(array: TList<T> | undefined, index: number, default?: T): T | undefined

Parameters

Name	Type	Optional	Description
array	TList<T>	No	Specifies the array, collection or enumerable object.
default	T	Yes	Optional parameter which specifies the default value if there is no first item.

Return value

Returns the first item or undefined if there is none.

Example

import { firstArrayItem } from "@tripetto/builder";

firstArrayItem<number>([1, 2, 3]); // Returns `1`