File: packages/ember-metal/lib/merge.js
/**
Merge the contents of two objects together into the first object.
```javascript
Ember.merge({ first: 'Tom' }, { last: 'Dale' }); // { first: 'Tom', last: 'Dale' }
var a = { first: 'Yehuda' };
var b = { last: 'Katz' };
Ember.merge(a, b); // a == { first: 'Yehuda', last: 'Katz' }, b == { last: 'Katz' }
```
@method merge
@for Ember
@param {Object} original The object to merge into
@param {Object} updates The object to copy properties from
@return {Object}
@public
*/
export default function merge(original, updates) {
if (!updates || typeof updates !== 'object') {
return original;
}
let props = Object.keys(updates);
let prop;
for (let i = 0; i < props.length; i++) {
prop = props[i];
original[prop] = updates[prop];
}
return original;
}