Your suggestion would work, but using a Do loop might be a little more readable. This is actually an idiom in C – instead of using a goto, you can have a do { } while (0) loop with a break statement if you want to bail out of the construct early. Dim i For … Read more
for uses iter(song) to loop; you can do this in your own code and then advance the iterator inside the loop; calling iter() on the iterable again will only return the same iterable object so you can advance the iterable inside the loop with for following right along in the next iteration. Advance the iterator … Read more
$array = array(1,2,3); foreach ($array as $item){ if ($item == 2) { break; } echo $item; } outputs “1” because the loop was broken forever, before echo was able to print “2”. $array = array(1,2,3); foreach ($array as $item){ if ($item == 2) { continue; } echo $item; } outputs 13 because the second iteration … Read more
If you are trying to have your second continue apply to the foreach loop, you will have to change it from continue; to continue 2; This will instruct PHP to apply the continue statement to the second nested loop, which is the foreach loop. Otherwise, it will only apply to the for loop.
The statement is ridiculous. continue can be abused, but it often helps readability. Typical use: for (somecondition) { if (!firsttest) continue; some_provisional_work_that_is_almost_always_needed(); if (!further_tests()) continue; do_expensive_operation(); } The goal is to avoid ‘lasagna’ code, where you have deeply nested conditionals. Edited to add: Yes, this is ultimately subjective. Here’s my metric for deciding. Edited one … Read more
There are other options other than what you are asking for that provide similar functionality. For example: You can avoid processing some values using filter: (like a continue) dataSet.filter { it % 2 == 0 }.forEach { // do work on even numbers } You can stop a functional loop by using takeWhile: (like a … Read more
UPDATE: This question was inspiration for my article on this subject. Thanks for the great question! “continue” and “break” are nothing more than a pleasant syntax for a “goto”. Apparently by giving them cute names and restricting their usages to particular control structures, they no longer draw the ire of the “all gotos are all … Read more
It’s fine, the continue statement relates to the enclosing loop, and your code should be equivalent to (avoiding such jump statements): while (something = get_something()) { if (something == A || something == B) do_something(); } But if you expect break to exit the loop, as your comment suggest (it always tries again with another … Read more
Here’s a simple example: for letter in ‘Django’: if letter == ‘D’: continue print(“Current Letter: ” + letter) Output will be: Current Letter: j Current Letter: a Current Letter: n Current Letter: g Current Letter: o It skips the rest of the current iteration (here: print) and continues to the next iteration of the loop.
break leaves a loop, continue jumps to the next iteration.