How to iterate over object properties

js-object-iteration.md

Iterating over object properties

var foo = {bar: 'test'};

Object.keys(foo).forEach( function(key) {
    // property name
    console.log(key);
    // property value
    console.log(foo[key]);
});

MDN Object.keys
MDN arr.forEach
MDN Enumerability and ownership of properties