remeda
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A utility library for JavaScript and Typescript.
19 lines (16 loc) • 533 B
text/typescript
import { N as NarrowedTo } from './NarrowedTo-CDIykNaN.cjs';
import 'type-fest';
/**
* A function that checks if the passed parameter is a string and narrows its type accordingly.
*
* @param data - The variable to check.
* @returns True if the passed input is a string, false otherwise.
* @signature
* R.isString(data)
* @example
* R.isString('string') //=> true
* R.isString(1) //=> false
* @category Guard
*/
declare function isString<T>(data: T | string): data is NarrowedTo<T, string>;
export { isString };