Delete object fields of undefined.
npm install clean-undefinedDelete object fields of undefined.
```
npm install clean-undefined
`ecmascript 6
const clean = require('clean-undefined')
const obj1 = {name: 'Bob', age: undefined}
// { name: 'Bob', age: undefined }
const obj2 = clean(obj1)
// { name: 'Bob' }
obj1 === obj2
// true
``
MIT