A function that can take another function as an argument and return a function as a return element is called a higher-order function. A pure function is a function that has no side effects and returns something based on its argument value. Map and filter are useful for various operations on lists and similar objects called iterable in Python. Map maps and filters are useful in Python's built-in functions such as make_double and filter. Lambda is very effective when it is very simple to send a function of one line as a function to another function.
Tahuruzzoha Tuhin
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