将键和属性从对象推到数组

Question

I would like to push all properties and keys from objects, including nested ones. That's how i'm trying:

 'use strict'; var getProps = function getProps(destination, object) { destination = destination || []; for (var key in object) { typeof object[key] === 'object' && object[key] !== 'null' ? destination.push(getProps(destination, object[key])) : destination.push(key); } return destination; } var object = { one: { two: 'three' } }; console.log(getProps([], object)) 

As you can see, isn't working properly.

Thanks in advance.

UPDATE -

Desire output:

['one', 'two', 'three'];

Answer 1

You could use recursion to achieve your desired result.

 var object = { one: { two: 'three' }, four: { five: 'six', seven: [ 'eight', 'nine', 'ten' ], eleven: { twelve: { thirteen: { fourteen: 'fifteen' } } } } }; function rabbitHole(output, object) { for (var i in object) { if (!Array.isArray(object)) { output.push(i); } if (typeof object[i] == 'object') { rabbitHole(output, object[i]); } else { output.push(object[i]); } } return output; } var output = rabbitHole([], object); console.log(output); 

Answer 2

You could use side-effects of JSON.stringify to simplify your code.

function keysAndVals(object) {
  var result = [];
  JSON.stringify(object, function(key, val) {
    result.push(key);
    if (typeof val !== "object") result.push(val);
    return val;
  });
  return result;
}