var enumerablePropertiesIn = require( '@stdlib/utils/enumerable-properties-in' );

var obj = {
    'a': 'a'
};

var props = enumerablePropertiesIn( obj );
// returns [ 'a' ]

var hasSymbolSupport = require( '@stdlib/assert/has-symbol-support' );
var Symbol = require( '@stdlib/symbol/ctor' );
var enumerablePropertiesIn = require( '@stdlib/utils/enumerable-properties-in' );

var hasSymbols = hasSymbolSupport();

function Foo() {
    this.a = 'b';
    if ( hasSymbols ) {
        this[ Symbol( 'a' ) ] = 'b';
    }
    return this;
}

Foo.prototype.foo = 'bar';
if ( hasSymbols ) {
    Foo.prototype[ Symbol( 'foo' ) ] = 'bar';
}

var obj = new Foo();
var props = enumerablePropertiesIn( obj );
// e.g., returns [ 'a', 'foo', ... ]