writetome51 / has-value-no-value

Functions that check if argument is, or is not, undefined or null

hasValue(arg): boolean

Returns true if arg is neither undefined or null.

noValue(arg): boolean

Returns true if arg is either undefined or null.

Installation

npm i @writetome51/has-value-no-value

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import { hasValue, noValue } from '@writetome51/has-value-no-value';