For vs while loop python
Yes, there is a huge difference between while and for. Show The for statement iterates through a collection or iterable object or generator function. The while statement simply loops until a condition is False. It isn't preference. It's a question of what your data structures are. Often, we represent the values we want to process as a Generally, however, we have a ready-made collection: a set, tuple, list, map or even a string is already an iterable collection, so we simply use a for loop. In a few cases, we might want some functional-programming processing done for
us, in which case we can apply that transformation as part of iteration. The If you don't have a tidy data structure to iterate through, or you don't have a generator function that drives your processing, you must use while. In this Python tutorial, we will discuss the For loop vs while loop in Python. Here we will also cover the below example:
What are loops?
Read: Python While loop condition Loops in Python
In Python, while loop is basically used to know how many iterations are required. Here is the Flow chart of while-loop Flow chart while loopSyntax of while loop:
In Python, you don’t know how many times you need to execute the statements that are present inside your body loop. Let us check the while loop condition with the help of an example: Source Code:
In the above code, we write this while loop condition z is less than 12 (x<12). The loop completes four ways and it stops when z is equal to 12. Here is the execution of the following given code Read: Python While loop condition For loop in PythonIn Python, the for loop is used when the user knows the number of iterations that are required. The user knows how many times the statement that is available inside the loops needs to be terminated. Here you can check the Flow-chart of the For-loop Flow chart For loop in pythonHere is the Syntax of For loop
In Python, for-loop provides you a syntax that will contain three information So first will be the condition after that the initial value and then incrementation of the given value. Here we can check them for loop condition with the help of an example Source Code:
We have written a for loop condition in the above code to display the country names in Output. In this example first, we initialize a list ‘country_name’ which contains three countries. Here is the Implementation of the following given code For loop in PythonRead: Python For Loop with Examples For loop vs while loop in Python
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In this Python tutorial, we have discussed the For loop vs while loop in Python. Here we have also covered the following topics:
Python is one of the most popular languages in the United States of America. I have been working with Python for a long time and I have expertise in working with various libraries on Tkinter, Pandas, NumPy, Turtle, Django, Matplotlib, Tensorflow, Scipy, Scikit-Learn, etc… I have experience in working with various clients in countries like United States, Canada, United Kingdom, Australia, New Zealand, etc. Check out my profile. Which is better for loop or while loop in Python?As you can see, the for-each loop outperforms its competitors by a wide margin. Also, the execution speed varies significantly between the fastest contestant and the looser while loop: for-each loops are more than six times faster than while loops. Even the for-range loop is nearly two times faster than the while loop.
Why you would use a for loop versus a while loop in Python?For loop allows a programmer to execute a sequence of statements several times, it abbreviates the code which helps to manage loop variables. While loop allows a programmer to repeat a single statement or a group of statements for the TRUE condition.
What is the difference between for loop and while loop?For is entry controlled loop. While is also entry controlled loop. used to obtain the result only when number of iterations is known.
Which is better while loop or for loop?The main reason that While is much slower is because the while loop checks the condition after each iteration, so if you are going to write this code, just use a for loop instead.
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