File: packages/ember-metal/lib/is_none.js
/**
Returns true if the passed value is null or undefined. This avoids errors
from JSLint complaining about use of ==, which can be technically
confusing.
```javascript
Ember.isNone(); // true
Ember.isNone(null); // true
Ember.isNone(undefined); // true
Ember.isNone(''); // false
Ember.isNone([]); // false
Ember.isNone(function() {}); // false
```
@method isNone
@for Ember
@param {Object} obj Value to test
@return {Boolean}
@public
*/
export default function isNone(obj) {
return obj === null || obj === undefined;
}