Naivete Precedes Misrepresentation

    typechecker
    TypeScript icon, indicating that this package has built-in type declarations

    7.18.0 • Public • Published

    TypeChecker

    Status of the GitHub Workflow: bevry NPM version NPM downloads Dependency Status Dev Dependency Status
    GitHub Sponsors donate button Patreon donate button Flattr donate button Liberapay donate button Buy Me A Coffee donate button Open Collective donate button crypto donate button PayPal donate button Wishlist browse button

    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

    npm

    • Install: npm install --save typechecker
    • Import: import * as pkg from ('typechecker')
    • Require: const pkg = require('typechecker')

    Skypack

    <script type="module">
        import * as pkg from '//cdn.skypack.dev/typechecker@^7.18.0'
    </script>

    unpkg

    <script type="module">
        import * as pkg from '//unpkg.com/typechecker@^7.18.0'
    </script>

    jspm

    <script type="module">
        import * as pkg from '//dev.jspm.io/typechecker@7.18.0'
    </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 against ES2020 for web browsers with Import for modules
    • typechecker aliases typechecker/edition-es2019/index.js
    • typechecker/edition-es2019/index.js is TypeScript compiled against ES2019 for Node.js 10 || 12 || 14 || 16 with Require for modules
    • typechecker/edition-es2019-esm/index.js is TypeScript compiled against ES2019 for Node.js 12 || 14 || 16 with Import 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

    These amazing people are maintaining this project:

    Sponsors

    No sponsors yet! Will you be the first?

    GitHub Sponsors donate button Patreon donate button Flattr donate button Liberapay donate button Buy Me A Coffee donate button Open Collective donate button crypto donate button PayPal donate button Wishlist browse button

    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:

    Keywords

    Install

    npm i typechecker

    DownloadsWeekly Downloads

    240,527

    Version

    7.18.0

    License

    MIT

    Unpacked Size

    77.3 kB

    Total Files

    14

    Last publish

    Collaborators

    • balupton
    • bevryme