TypeChecker
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
Why?
Why should I use this instead of say instanceof
?
Under certain circumstances instanceof
may not return the correct results. This occurs with node's vm module especially, and circumstances where an object's prototype has been dereferenced from the original. As such, for basic ==
and ===
checks (like a === null
), you're fine not using this, but for checks when you would have done instanceof
(like err instanceof Error
), you should try to use this instead. Plus things like isPlainObject
are darn useful!
Usage
Complete API Documentation.
Install
- Install:
npm install --save typechecker
- Import:
import * as pkg from ('typechecker')
- Require:
const pkg = require('typechecker')
import * as pkg from 'https://unpkg.com/typechecker@^7.16.0/edition-deno/index.ts'
<script type="module">
import * as pkg from '//cdn.skypack.dev/typechecker@^7.16.0'
</script>
<script type="module">
import * as pkg from '//unpkg.com/typechecker@^7.16.0'
</script>
<script type="module">
import * as pkg from '//dev.jspm.io/typechecker@7.16.0'
</script>
This package is published with the following editions:
typechecker/source/index.ts
is TypeScript source code with Import for modulestypechecker/edition-browsers/index.js
is TypeScript compiled against ES2019 for web browsers with Import for modulestypechecker
aliases typechecker/edition-esnext/index.js
typechecker/edition-esnext/index.js
is TypeScript compiled against ESNext for Node.js 10 || 12 || 13 || 14 with Require for modulestypechecker/edition-esnext-esm/index.js
is TypeScript compiled against ESNext for Node.js 12 || 13 || 14 with Import for modulestypechecker/edition-deno/index.ts
is TypeScript source code made to be compatible with Deno
History
Discover the release history by heading on over to the HISTORY.md
file.
Contribute
Discover how you can contribute by heading on over to the CONTRIBUTING.md
file.
Backers
Maintainers
These amazing people are maintaining this project:
No sponsors yet! Will you be the first?
Contributors
These amazing people have contributed code to this project:
Discover how you can contribute by heading on over to the CONTRIBUTING.md
file.
License
Unless stated otherwise all works are:
and licensed under: