Description: An initializer list is a list of variables that are initialized when an object is created in C++. This mechanism allows assigning values to an object’s attributes more efficiently and readably. Instead of using a traditional constructor that assigns values to each instance variable, the initializer list allows doing so in a single line, right after the constructor declaration. This not only improves code clarity but can also optimize performance, as variables are initialized directly at the time of object construction, avoiding additional assignments. Initializer lists are particularly useful for initializing constants, references, and class members that do not have a default constructor. Moreover, their use is fundamental in object-oriented programming in C++, where the correct initialization of objects is crucial for the program’s functioning. In summary, initializer lists are a powerful and essential feature in C++ that contributes to creating cleaner and more efficient code.