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typechecker

Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

TypeChecker


Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

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!

API Documentation.

Install

NPM

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

    • Install: npm install --save typechecker
    • Module: require('typechecker')
    • CDN URL: //wzrd.in/bundle/typechecker@4.3.0
    • Ender

      • Install: ender add typechecker
      • Module: require('typechecker')
      • Editions

        This package is published with the following editions:

        Older environments may need Babel's Polyfill or something similar.

        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: