Function hasProp

Higher-order function. Returns a function that checks if the argument has the specified prop. It can check:

1. if the prop exists
2. if the prop is equal to a value
3. if it passes a filter

Higher-order function. Returns a function that checks if the argument has the specified prop. It can check:

1. if the prop exists
2. if the prop is equal to a value
3. if it passes a filter