Hello in this tutorial, we will understand the different ways to use the map function in python programming.
1. Introduction
The map() function in python programming executes a given function for each item in an iterable. The entity to the function is sent as a parameter. Following the syntax for the map() function –
1 2 3 4 | map(function, iterables)where,function - Is a mandatory parameter that denotes the function to be executed for each itemiterable – Is a mandatory parameter that represents a sequence, collection, or an iterator object |
1.1 Setting up Python
If someone needs to go through the Python installation on Windows, please watch this link. You can download the Python from this link.
2. Python map function Example
I am using JetBrains PyCharm as my preferred IDE. You are free to choose the IDE of their choice.
2.1 Use map() function
Let us understand this with the help of a code snippet.
Use map() function
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 | # map() function returns a map iterator object of the results after applying the giving function to each item# of a given iterable# Syntax - map(function. iterator)def add(x): return x + xdef multiply(x): return x * xnumbers = (1, 2, 3, 4, 5)addition = map(add, numbers)print(list(addition))multiplication = map(multiply, numbers)print(list(multiplication))# map() function with lambda expressionlambda_result = map(lambda x: x * x, numbers)print('\nmap() with Lambda expression')print(list(lambda_result)) |
If everything goes well the following output will be shown in the IDE console.
Console Output
1 2 3 4 | [2, 4, 6, 8, 10][1, 4, 9, 16, 25]map() with Lambda expression[1, 4, 9, 16, 25] |
That is all for this tutorial and I hope the article served you with whatever you were looking for. Happy Learning and do not forget to share!
3. Summary
In this tutorial, we learned –
- An introduction to
map()function in the python programming language - Sample program to understand the
map()function in the python programming language
You can download the source code of this tutorial from the Downloads section.
4. Download the Project
This was an example of map() function in python programming.
You can download the full source code of this example here: Python map function Example
