Loops can execute a block of code as long as a specified condition is true.
The while statement creates a loop that is executed while a specified condition is true. The loop will continue to run as long as the condition is true. It will only stop when the condition becomes false.
The do/while statement creates a loop that executes a block of code once, before checking if the condition is true, then it will repeat the loop as long as the condition is true. The do/while statement is used when you want to run a loop at least one time, no matter what.
Why do you use while true?
A while-loop executes code repeatedly as long as a given boolean condition evaluates to True . Using while True results in an infinite loop.
An infinite loop will run forever, but the program can be terminated with the break keyword. In the below example, we will add an if statement to the while loop, and when that condition is met, we will terminate the loop with break .
Can you use else with while?
While loop with else Same as with for loops, while loops can also have an optional else block. The else part is executed if the condition in the while loop evaluates to False . The while loop can be terminated with a break statement.
What is true loop?
Put simply, using while True: is just a way of running a loop that will continue to run until you explicitly break out of it using break or return . Since True will always evaluate to True, you have to force the loop to end when you want it to.
How do you break a true loop?
- The break statement exits a for or while loop completely. To skip the rest of the instructions in the loop and begin the next iteration, use a continue statement.
- break is not defined outside a for or while loop. To exit a function, use return .
What happens infinite loop?
An infinite loop is a piece of code that keeps running forever as the terminating condition is never reached. An infinite loop can crash your program or browser and freeze your computer. Another classic example will be of the for loop where the terminating condition is set to infinity.
Why is my do while loop infinite?
Basically, the infinite loop happens when the condition in the while loop always evaluates to true. This can happen when the variables within the loop aren’t updated correctly, or aren’t updated at all. The condition evaluates to true, and the loop begins an infinite run.