withFallback

• withFallback

This function returns a new function that either returns the result of func or a fallback value defaultValue if the result is null or undefined.

Added in v0.0.2

Usage

import { withFallback } from 'parsnip-kit'

const func = (a: number) => (a === 0 ? null : a)
const funcWithDefault = withFallback(func, -1)

funcWithDefault(1)
// 1
funcWithDefault(0)
// -1

API

Type Parameter

Arg	Type	Description
T	extends (...args: any[]) => any	Function type
R		Type of default value

Arguments

Arg	Type	Optional	Default	Description
func	T	false	undefined	The function with default return value
defaultValue	R	false	undefined	Default value

Returns

Type
WithFallback<T, R>

Reference

WithFallback