# @itsjonq/is

> A tiny type checker

Latest version **0.0.5** (published 2020-08-17) · MIT license · 0 weekly downloads

## Install

```sh
npm install @itsjonq/is
pnpm add @itsjonq/is
yarn add @itsjonq/is
bun add @itsjonq/is
```

## Health

**Score 30/100 (F)** — status: abandoned.

Positive: has types; esm support; no vulnerabilities; high quality score.

Warnings: low downloads; pre 1.0.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 0.0.5 |
| Published | 2020-08-17 |
| First published | 2019-12-01 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Dependencies | 0 |
| Unpacked size | 15.9 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 6 |
| Author | Jon Quach |
| Maintainers | itsjonq |
| Keywords | type, check, checker, typechecker, typechecking, type-checking, check-type, plain-object, tiny, is, small |

## Links

- npm: https://www.npmjs.com/package/@itsjonq/is
- Repository: https://github.com/itsjonq/is
- Homepage: https://github.com/itsjonq/is#readme
- Issues: https://github.com/itsjonq/is/issues
- npm.io page: https://npm.io/package/@itsjonq/is

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## Recent versions

- 0.0.5 (latest) — 2020-08-17
- 0.0.4 — 2020-08-17
- 0.0.3 — 2020-08-17
- 0.0.2 — 2019-12-01
- 0.0.1 — 2019-12-01

## README

# 💡 is

[![Build Status](https://travis-ci.org/ItsJonQ/is.svg?branch=master)](https://travis-ci.org/ItsJonQ/is)
[![codecov](https://codecov.io/gh/ItsJonQ/is/branch/master/graph/badge.svg)](https://codecov.io/gh/ItsJonQ/is)
[![Bundle size](https://badgen.net/bundlephobia/minzip/@itsjonq/is)](https://bundlephobia.com/result?p=@itsjonq/is)

> A tiny type checker

`is` is a simple sub 400B type checking library for JavaScript.<br />
For a more feature-packed version, check out [@sindresorhus/is](https://github.com/sindresorhus/is).

## Table of Contents

<!-- START doctoc generated TOC please keep comment here to allow auto update -->
<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->

-   [Installation](#installation)
-   [Usage](#usage)
    -   [Supported types](#supported-types)

<!-- END doctoc generated TOC please keep comment here to allow auto update -->

## Installation

```
npm install @itsjonq/is
```

## Usage

```js
import is from '@itsjonq/is';

is.string('Hello');
// true

const fn = () => 'Nope';

is.string(fn);
// false
is.function(fn);
// true
is.object(fn);
// true
is.plainObject(fn);
// false
```

### Supported types

-   `is.array`
-   `is.blob`
-   `is.boolean`
-   `is.defined`
-   `is.file`
-   `is.function`
-   `is.map`
-   `is.null`
-   `is.number`
-   `is.object`
-   `is.plainObject`
-   `is.regExp`
-   `is.string`
-   `is.symbol`
-   `is.undefined`
-   `is.weakMap`

---
_Source: https://npm.io/package/@itsjonq/is · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._