5.0.0-next.1 • Published 5 years ago
@nbsh/to-type v5.0.0-next.1
to-type
Fixes JavaScript typeof operator using Symbol.toStringTag
Installation
$ npm i -S @nbsh/to-type
$ yarn add @nbsh/to-type
Usage
import { strictEqual } from 'assert';
import { toType, Types } from '@nbsh/to-type';
toType(4); // "number"
toType('abc'); // "string"
toType(true); // "boolean"
toType({ a: 4 }); // "object"
toType([1, 2, 3]); // "array"
toType(new Date()); // "date"
toType(/a-z/); // "regexp"
toType(undefined); // "undefined"
toType(null); // "null"
toType(new TypeError()); // "error"
toType(() => {}); // "function"
strictEqual(toType(4), Types.Number); // true
strictEqual(toType('abc'), Types.String); // true
API
toType(object: unknown): string
The toType()
method return the default string description of the object it receive as argument. toType()
do not affect the object itself.
See Symbol.toStringTag.
Types: enum
The Types
enum represent the well-known string descriptions that toType()
method return. Note, implementing a class that overrides the toStringTab symbol will not make its value available within this enum.
5.0.0-next.1
5 years ago