remeda
Version:
A utility library for JavaScript and Typescript.
19 lines (17 loc) • 541 B
TypeScript
/**
* A function that checks if the passed parameter is defined *AND* isn't `null`
* and narrows its type accordingly.
*
* @param data - The variable to check.
* @returns True if the passed input is defined and isn't `null`, false
* otherwise.
* @signature
* R.isNonNullish(data)
* @example
* R.isNonNullish('string') //=> true
* R.isNonNullish(null) //=> false
* R.isNonNullish(undefined) //=> false
* @category Guard
*/
declare function isNonNullish<T>(data: T): data is NonNullable<T>;
export { isNonNullish };