remeda/dist/isError.cjs.map

A utility library for JavaScript and Typescript.

{"version":3,"file":"isError.cjs","names":[],"sources":["../src/isError.ts"],"sourcesContent":["import type { IsNever } from \"type-fest\";\n\ntype DefinitelyError<T> =\n  IsNever<Extract<T, Error>> extends true ? Error : Extract<T, Error>;\n/**\n * A function that checks if the passed parameter is an Error and narrows its type accordingly.\n *\n * @param data - The variable to check.\n * @returns True if the passed input is an Error, false otherwise.\n * @signature\n *    isError(data)\n * @example\n *    isError(new Error('message')) //=> true\n *    isError('somethingElse') //=> false\n * @category Guard\n */\nexport function isError<T>(data: Error | T): data is DefinitelyError<T> {\n  return data instanceof Error;\n}\n"],"mappings":"mEAgBA,SAAgB,EAAW,EAA6C,CACtE,OAAO,aAAgB,KACzB"}