Function mergeProps

mergeProps(
    target?: object,
    source?: object,
    overrideNil?: boolean,
): undefined | object
Returns an object that merged the given source, when the key of source is missing, or the value of matching key is null or undefined
Parameters
- Optionaltarget: object
  the target object to assign to
- Optionalsource: object
  the source object to assign from
- overrideNil: boolean = true
  whether to override the value of target, when it is null or undefined
Returns undefined | object
an object that merged the given source, when the key of source is missing, or the value of matching key is null or undefined
Author
David Hsing
Example
```
mergeProps({}, {'foo': 'bar'});
```