remove :: Hash
remove(key) -> value
remove(key1, key2...) -> Array
Removes keys from a hash and returns their values.
Examples
var h = new Hash({ a:'apple', b:'banana', c:'coconut' })
h.remove('a', 'c')
// -> ['apple', 'coconut']
h.values()
// -> ['banana']
Prototype API 1.5.0 - prototypejs.org