var dimensions = { width: 10, height: 15, length: 20 }; var keys = $.map( dimensions, function( value, key ) { return key; }); // https://api.jquery.com/jquery.map/
var dimensions = { width: 10, height: 15, length: 20 }; var keys = $.map( dimensions, function( value, key ) { return key; }); // https://api.jquery.com/jquery.map/