description

# operator []= method

void operator []=(

1. K key,
2. V value

)
override

Associates the `key` with the given `value`.

If the key was already in the map, its associated value is changed. Otherwise the key/value pair is added to the map.

## Implementation

    void operator []=(K key, V value) {
      // Splay on the key to move the last node on the search path for
      // the key to the root of the tree.
      int comparison = _splay(key);
      if (comparison == 0) {
        _root!.value = value;
        return;
      }
      _addNewRoot(_SplayTreeMapNode(key, value), comparison);
    }