How To Use the Python Map Function?

Let’s learn how to use the Python map function based on examples.

The syntax for the map() method is as follows:

map(function, iterable, [iterable 2, iterable 3, ...])

The map function in Python is a built-in function that allows you to apply a given function to each item in an iterable (e.g. a list, tuple, set, etc.).

Here’s an example of how to use the map function:

# Define the function to be applied
def square(x):
    return x**2

# Define the iterable
numbers = [1, 2, 3, 4, 5]

# Apply the function to each item in the iterable using map
squared_numbers = list(map(square, numbers))

# Print the result
print(squared_numbers)
# Output: [1, 4, 9, 16, 25]

In this example, the map function takes two arguments: the function to be applied (square) and the iterable (numbers). The map function returns a map object, which can be converted to a list (as shown in this example) or any other iterable. The square function is applied to each item in the numbers list, and the result is stored in the squared_numbers list.