Nightmarish Pawnshop Mystic

    @fav/prop.enum-own-keys

    1.0.2 • Public • Published

    @fav/prop.enum-own-keys NPM MIT License Build Status Build Status Coverage status

    Lists enumerable own property keys of an object.

    "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/prop.enum-own-keys

    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/prop.enum-own-keys/ directory manually.

    Usage

    For Node.js:

    var enumOwnKeys = require('@fav/prop.enum-own-keys');
    enumOwnKeys({ a: 1, b: true, c: 'C' }); // => ['a', 'b', 'c']
     
    function Fn() { this.a = 1; }
    Fn.prototype.b = true;
    var fn = new Fn();
    Object.defineProperty(fn, 'c', { value: 'C' });
    enumOwnKeys(fn); // => ['a']

    For Web browsers:

    <script src="fav.prop.enum-own-keys.min.js"></script>
    <script>
    var enumOwnKeys = fav.prop.enumOwnKeys;
    enumOwnKeys({ a: 1, b: true, c: 'C' }); // => ['a', 'b', 'c']
    </script> 

    API

    enumOwnKeys(obj) : Array

    Lists own enumerable property keys of a given object.

    This function returns the same result of Object.keys(obj), but returns an empty array if obj is nullish.

    NOTE: The behavior of Object.keys is different between before and after of Node.js v0.12 when the argument is not an object.

    Parameter:

    Parameter Type Description
    obj object The object to be listed its property keys.

    Return:

    An array of property keys.

    Type: Array

    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/prop.enum-own-keys

    DownloadsWeekly Downloads

    1

    Version

    1.0.2

    License

    MIT

    Unpacked Size

    11.5 kB

    Total Files

    7

    Last publish

    Collaborators

    • sttk