README

@sapphire/type

A type detection utility for JavaScript.

Table of Contents

@sapphire/type

Description

Sometimes there is a need to know what a value's type of something is, this package exists to satisfy those needs by implementing a parser that can retrieve the type of the value recursively and process a string similar to TypeScript's types.

Features

Written in TypeScript
Bundled with Rollup so it can be used in NodeJS and browsers
Offers CommonJS, ESM and UMD bundles
Fully tested

Installation

yarn add @sapphire/type
# npm install @sapphire/type

Usage

Note: While this section uses require, the imports match 1:1 with ESM imports. For example const { Type } = require('@sapphire/type') equals import { Type } from '@sapphire/type'.

Note: When using ESM syntax you can also default-import Type class: import Type from '@sapphire/type'.

Note: The internal functions of getPromiseDetails and getProxyDetails are also exported. If you don't know what these are, then you need not be concerned about this.

Basic Usage

// Import the Type class
const { Type } = require('@sapphire/type');

// Define a Type with an array of two numbers
const type = new Type([1, 2]);

console.log(type.toString());
// Logs: Array<number>

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