put
Put a value at a key.
Return
The old value at that key or null if there was no such key.
Parameters
key
The key to put the value at.
value
The value to put.
Throws
The dictionary is not mutable.
Put a value at a key.
The old value at that key or null if there was no such key.
The key to put the value at.
The value to put.
The dictionary is not mutable.