All language subtitles for 15. While Loops with Break and Continue

In the previous video we built this code. The code goes like this.
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We assign the empty string to user name variable, and then we build a while loop which checks if this
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condition is true.
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So if the condition of that user name is different from pypy.
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If user name is different from pypy, this is going to be executed.
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So in the first iteration user name is actually different from pypy because user name is an empty
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string.
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Therefore this is going to be executed.
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The program asks for the user name. If the input is a for example a will be assigned to user name and
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then the second iterations starts.
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So while A is different from pypy which is true,
this is going to be executed again.
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That's why we get these prompt here again.
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If you enter pypy, the loop ends because in the third iteration pypy is not different from
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pypy, so this will not occur anymore.
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Now there is a different way to do this using a brake statement instead of doing the above.
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Let me
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do it another way.
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Again using the while loop but this time you want to check if true.
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While true which is always true so the loop will always execute until we break it, so while true
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we want to ask for the user name, input enter the user name.
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Now we want to create a conditional here to check inside the while loop.
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So if user name is pypy, and break the loop.
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Else continue.
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Let's see what this will give us Python 3
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b.py.
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That's the right side script.
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Enter username.
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Nope.
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Nope.
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Pypy.
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Yes.
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Let me try again.
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If you enter pypy right away again the loop terminates.
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I do prefer this actually because it gives you more control of the workflow.
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So this is what's happened here, while true which is always true.
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So the first iteration occurs because true is true,
and we ask for the user name in the first iteration.
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So in the first iteration here the user name was asfd.
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So if asfd is equal to pypy breaks the loop.
That is not the case because asfd is different then
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pypy.
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Therefore this will not occur because this condition is false.
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Else will be executed.
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Continue.
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Now what continue does is it moves the control on top of the loop again.
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So that's how you use break and continue in a while loop.
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Both ways are correct but I do find this more readable.