Return an array of an object's own and inherited writable property names and symbols.
npm install @stdlib/utils-writable-properties-in
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var writablePropertiesIn = require( '@stdlib/utils-writable-properties-in' );
Returns an array
of an object's own and inherited writable property names and symbols.
var defineProperty = require( '@stdlib/utils-define-property' ); var obj = {}; defineProperty( obj, 'a', { 'configurable': false, 'enumerable': false, 'writable': true, 'value': 'a' }); var props = writablePropertiesIn( obj ); // returns [ 'a', ... ]
var defineProperty = require( '@stdlib/utils-define-property' ); var hasSymbolSupport = require( '@stdlib/assert-has-symbol-support' ); var Symbol = require( '@stdlib/symbol-ctor' ); var writablePropertiesIn = require( '@stdlib/utils-writable-properties-in' ); var hasSymbols = hasSymbolSupport(); function Foo() { this.a = 'a'; defineProperty( this, 'b', { 'configurable': true, 'enumerable': true, 'writable': false, 'value': 'b' }); if ( hasSymbols ) { this[ Symbol( 'a' ) ] = 'a'; defineProperty( this, Symbol( 'b' ), { 'configurable': true, 'enumerable': true, 'writable': false, 'value': 'b' }); } return this; } Foo.prototype.foo = 'bar'; defineProperty( Foo.prototype, 'beep', { 'configurable': false, 'enumerable': false, 'writable': false, 'value': 'boop' }); if ( hasSymbols ) { Foo.prototype[ Symbol( 'foo' ) ] = 'bar'; defineProperty( Foo.prototype, Symbol( 'beep' ), { 'configurable': false, 'enumerable': false, 'writable': false, 'value': 'boop' }); } var obj = new Foo(); var props = writablePropertiesIn( obj ); // e.g., returns [ 'a', 'foo', ... ]
@stdlib/utils/inherited-writable-properties
: return an array of an object's inherited writable property names and symbols.@stdlib/utils/writable-properties
: return an array of an object's own writable property names and symbols.@stdlib/utils/properties-in
: return an array of an object's own and inherited property names and symbols.
This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
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