Ninety Percent Muffin

    @fav/prop.enum-own-props

    1.0.2 • Public • Published

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

    Lists enumerable own property keys and symbols 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-props

    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-props/ directory manually.

    Usage

    For Node.js:

    var enumOwnProps = require('@fav/prop.enum-own-props');
    
    var symbol0 = Symbol('foo');
    var symbol1 = Symbol('bar');
    
    var obj = { a: 1 };
    obj[symbol0] = 2;
    Object.defineProperty(obj, 'b', { value: 3 });
    Object.defineProperty(obj, symbol1, { value: 4 });
    
    enumOwnProps(obj); // => ['a', Symbol(foo)]
    
    function Fn() { this.a = 1; }
    Fn.prototype.b = true;
    Fn.prototype[symbol0] = false;
    var fn = new Fn();
    enumOwnProps(fn); // => ['a']

    For Web browsers:

    <script src="fav.prop.enum-own-props.min.js"></script>
    <script>
    var enumOwnProps = fav.prop.enumOwnProps;
    
    var symbol0 = Symbol('foo');
    var symbol1 = Symbol('bar');
    
    var obj = { a: 1 };
    obj[symbol0] = 2;
    Object.defineProperty(obj, 'b', { value: 3 });
    Object.defineProperty(obj, symbol1, { value: 4 });
    
    enumOwnProps(obj); // => ['a', Symbol(foo)]
    </script>

    API

    enumOwnProps(obj) : Array

    Lists enumerable own property keys and symbols of the given object.

    This funciton returns an empty array when the argument is nullish.

    Parameter:

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

    Return:

    An array of property keys and symbols.

    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-props

    DownloadsWeekly Downloads

    12

    Version

    1.0.2

    License

    MIT

    Unpacked Size

    14 kB

    Total Files

    7

    Last publish

    Collaborators

    • sttk