typechecker
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
Last updated 5 years ago by bevryme .
MIT · Repository · Bugs · Original npm · Tarball · package.json 
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TypeChecker

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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 isEmpty, isEmptyObject and isPlainObject are darn useful!

Usage

API Documentation

Install

npm

  • Install: npm install --save typechecker
  • Require: require('typechecker')

jspm

<script type="module">
    import * as pkg from '//dev.jspm.io/typechecker'
</script>

Editions

This package is published with the following editions:

  • typechecker/source/index.ts is typescript source code with import for modules
  • typechecker/edition-browsers/index.js is typescript compiled for browsers with import for modules
  • typechecker aliases typechecker/edition-node-12/index.js
  • typechecker/edition-node-12/index.js is typescript compiled for node.js 12 with require for modules

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

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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:

Current Tags

135 Versions

Maintainers (2)
balupton
bevryme
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