not working while-loop
i=0
l1=["rohan","sachin","sam","raj"]
while i<len(l1):
if l1[i].startswith('s'): #if i comment out this line it is working
print("GREET "+l1[i])
i=i+1
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Mike Scotty
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over-night-coder
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3do you really mean to increment `i` in the `if` block? – MarcoP Mar 22 '21 at 08:31
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It looks like an endless loop. Shift the last line one tab to the left. – Michael Rovinsky Mar 22 '21 at 14:32
3 Answers
1
That is because incrementing of i is done inside if condition instead of while loop. As first word in your list did not start with "S" it wont go inside if hence i is not incremented and while loop executes forever. it is just a logic issue
Venkat
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Indentation is important in Python.
You must increment your counter i every time, not just when you print, otherwise it's an endless loop.
i=0
l1=["rohan","sachin","sam","raj"]
while i<len(l1):
if l1[i].startswith('s'):
print("GREET "+l1[i])
i=i+1 # <- increment counter outside of if-block!
Mike Scotty
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yes ,after shifting counter to left it is working. counter should be placed out side of if block.
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Welcome to stackoverflow! Use an code example with references when you provide an answer to help illustrate the answer best. – lys Dec 30 '21 at 07:10
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Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Community Dec 30 '21 at 07:10