Given a map m,the expression m["value"] will return NULL if there is no string named "value" stored in the map.

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Quizplus · Accepted Answer

In many programming languages, attempting to access a map with a key that does not exist will not return NULL. Instead, the behavior depends on the language and could result in an error, or the map might automatically create a new entry with a default value for the given key. For example, in C++, accessing a non-existent key in a `std::map` will insert that key with a value-initialized value. In Python, attempting to access a non-existent key in a dictionary with `dict["key"]` will raise a KeyError.

Given a Map M,the Expression M["value"] Will Return NULL If