Fill keys in a destination that are defined on the source
npm install fill-keys> Fill keys in a destination that are defined on the source. Copies descriptors so properties like enumerable will persist.
```
$ npm install --save fill-keys
`js
const fillKeys = require('fill-keys')
fillKeys(destination, source);
//=> missing destination keys in source are copied
`
fill-keys will copy descriptors. It will also copy the source.prototype properties onto destination.prototype if both destination and source are functions.
#### fillKeys(destination, source) -> destination
#### destination
Required
Type: any
The destination object where keys from source will be added.
#### source
Required
Type: any`
The source object from which to copy properties.
MIT © Ben Drucker