How do exit two nested loops? [duplicate]
In Java you can use a label to specify which loop to break/continue: mainLoop: while (goal <= 100) { for (int i = 0; i < goal; i++) { if (points > 50) { break mainLoop; } points += i; } }
In Java you can use a label to specify which loop to break/continue: mainLoop: while (goal <= 100) { for (int i = 0; i < goal; i++) { if (points > 50) { break mainLoop; } points += i; } }
There are a lot of answers here. And it’s old, but this is for anyone coming here via google. In jQuery each function return false; is like break. just return; is like continue These will emulate the behavior of break and continue.
Should we use a break; in the last default case? From The C programming language – Second edition (K&R 2): Chapter 3.4 Switch As a matter of good form, put a break after the last case (the default here) even though it’s logically unnecessary. Some day when another case gets added at the end, this … Read more
The labels in JavaScript are used mainly with break, or continue in nested loops to be able to break the outer, or continue the outer loop from the code inside inner loop: outer: for (let i = 0; i < 10; i++) { let k = 5; for (let j = 0; j < 10; … Read more
break is to break out of a loop like for, while, switch etc which you don’t have here, you need to use return to break the execution flow of the current function and return to the caller. function loop() { if (isPlaying) { jet1.draw(); drawAllEnemies(); requestAnimFrame(loop); if (game == 1) { return } } } … Read more
Yes. It uses the same syntax as lifetimes. fn main() { ‘outer: for x in 0..5 { ‘inner: for y in 0..5 { println!(“{},{}”, x, y); if y == 3 { break ‘outer; } } } } See loop labels documentation and the related section of the reference.
$array = array(1,2,3); foreach ($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
The semicolon does nothing in the code you show. I suspect this is someone who programs in another language (C, Java, …) that requires semicolons at the end of statements and it’s just a habit (happens to me sometimes too). If you want to put several Python statements on the same line, you can use … Read more
EDIT: How bad is the goto statement really, and why? It depends on the exact situation. I can’t remember any time where I found it made the code more readable than refactoring. It also depends on your personal view of readability – some people dislike it more than others, as is clear from the other … 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