break and continue
If you want to exit any kind of loop early, use
break.
For loop, this can take an optional expression that becomes the value of the loop expression.
If you want to immediately start
the next iteration use continue.
Both continue and break can optionally take a label argument which is used
to break out of nested loops:
In this case we break the outer loop after 3 iterations of the inner loop.
Speaker Notes
This slide should take about 5 minutes.
- Note that
loopis the only looping construct which returns a non-trivial value. This is because itβs guaranteed to be entered at least once (unlikewhileandforloops).