while Loop
While: when something is true, Keep doing it, until it getting false.
This code will never end. it is a infinite loop
## while loops
num = 1
while num <4:
print("Hello world")
output:
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
............ it will never end. it is an infinite loop.
num = 1 is less than 4 and it always less than 4 that's why it run again and again.
it will run 3 times because num increment with num +=1
num = 1
while num <4:
print("Hello world")
num += 1
output:
Hello world
Hello world
Hello world
Hello world
Hello world