@fav/type.is-function

    1.0.2 • Public • Published

    @fav/type.is-function NPM MIT License Build Status Build Status Coverage status

    Checks whether a value is a function or not.

    "fav" is an abbreviation of "favorite" and also the acronym of "for all versions". This package is intended to support all Node.js versions and many browsers as possible. At least, this package supports Node.js >= v0.10 and major Web browsers: Chrome, Firefox, IE11, Edge, Vivaldi and Safari.

    Install

    To install from npm:

    $ npm install --save @fav/type.is-function

    NOTE: npm < 2.7.0 does not support scoped package, but old version Node.js supports it. So when you use such older npm, you should download this package from github.com, and move it in node_modules/@fav/type.is-function/ directory manually.

    Usage

    For Node.js:

    var isFunction = require('@fav/type.is-function');
    isFunction(function f() {}); // => true
    isFunction.not(function f() {}); // => false

    For Web browsers:

    <script src="fav.type.is-function.min.js"></script>
    <script>
    var isFunction = fav.type.isFunction;
    isFunction(function f() {}); // => true
    isFunction.not(function f() {}); // => false
    </script> 

    API

    isFunction(value) : boolean

    Checks if value is a function.

    Parameter:

    Parameter Type Description
    value any The value to be checked.

    Return:

    True, if value is a function.

    Type: boolean

    isFunction.not(value) : boolean

    Checks if value is not a function.

    This function always returns a negative boolean of isFunction(value).

    Parameter:

    Parameter Type Description
    value any The value to be checked.

    Return:

    True, if value is not a function.

    Type: boolean

    Checked

    Node.js (4〜)

    Platform 4 5 6 7 8 9 10
    macOS
    Windows10
    Linux

    io.js (1〜3)

    Platform 1 2 3
    macOS
    Windows10
    Linux

    Node.js (〜0.12)

    Platform 0.8 0.9 0.10 0.11 0.12
    macOS
    Windows10
    Linux

    Web browsers

    Platform Chrome Firefox Vivaldi Safari Edge IE11
    macOS -- --
    Windows10 --
    Linux -- -- --

    License

    Copyright (C) 2017-2018 Takayuki Sato

    This program is free software under MIT License. See the file LICENSE in this distribution for more details.

    Install

    npm i @fav/type.is-function

    DownloadsWeekly Downloads

    17

    Version

    1.0.2

    License

    MIT

    Unpacked Size

    11.2 kB

    Total Files

    7

    Last publish

    Collaborators

    • sttk