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Map Module

Overview​

The Map module provides a data structure that allows you to store key-value pairs, enabling efficient retrieval and management of data. It supports various operations such as insertion, retrieval, checking for existence, and removal of key-value pairs.

Types​

Map::String​

The Map::String type represents a map where both keys and values are of type string. It provides methods to manipulate the map efficiently.

Functions​

new Map::String()​

Creates a new instance of a string map.

Returns​

  • Map::String: A new empty string map.

insert(key: str, value: str)​

Inserts a key-value pair into the map.

Parameters​

  • key: The key to be inserted into the map.
  • value: The value associated with the key.

get(key: str) -> str​

Retrieves the value associated with the specified key.

Parameters​

  • key: The key whose value needs to be retrieved.

Returns​

  • str: The value associated with the key, or null if the key does not exist.

contains(key: str) -> bool​

Checks whether the map contains the specified key.

Parameters​

  • key: The key to check for existence in the map.

Returns​

  • bool: true if the key exists, otherwise false.

remove(key: str)​

Removes the key-value pair associated with the specified key.

Parameters​

  • key: The key to be removed from the map.

free()​

Frees the memory allocated for the map.

Example Usage​

var m: Map::String = new Map::String()
m.insert("key1", "value1")
m.insert("key2", "value2")
m.insert("key3", "value3")
m.insert("key4", "value4")

print(m.get("key1"))      
print(m.get("key2"))   
print(m.contains("key3")) 

m.remove("key3")
print(m.contains("key3")) 

m.free()