TMapsampleMap; sampleMap.Add(1, 100); sampleMap.Add(2, 200); bool keyExists = sampleMap.CheckKey(2); // returns true
TMapIn this example, we have created a TMap containing the scores of some students as key-value pairs. We have then used the CheckKey function to check if the key 'Jack' exists in the map. Since the key 'Jack' has not been added to the map, the function will return false. The TMap class is a part of the Unreal Engine 4 framework and is used in the development of video games and other applications.scoreMap; scoreMap.Add("John", 80.5); scoreMap.Add("Mark", 75.0); scoreMap.Add("Emily", 92.25); bool keyExists = scoreMap.CheckKey("Jack"); // returns false