else/QuickTips/continue.md

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2016-05-10 08:00:29 +00:00
Continue
========
Discards the current iteration, and restarts the loop using the next item.
>>> for x in range(6):
... if x == 3:
... continue
... print(x)
...
0
1
2
4
5
####Continue is great for cleaning code with lots of conditions:
#####Without continue:
for submission in submissions:
if submission.author is not None:
if submission.over_18 is False:
if 'suggestion' in submission.title.lower():
print('Found:', submission.id)
 
for submission in submissions:
if submission.author is not None and submission.over_18 is False and 'suggestion' in submission.title.lower():
print('Found:', submission.id)
#####With continue:
for submission in submissions:
if submission.author is None:
continue
if submission.over_18:
continue
if 'suggestion' not in submission.title.lower():
continue
print('Found:', submission.id)
The mentality changes from "keep only the items with the right properties" to "discard the items with the wrong properties".