foreach

Combining foreach and while in PHP

由 ℡╲_俬逩灬. 提交于 2020-12-05 04:58:12
问题 This seems like it should be a simple question, but I can't find a good answer. Is there a way of putting a condition on a foreach loop? I'd like something like this: foreach ($array as $value WHILE $condition == true) { //do some code } Of course I could just put an if condition inside of the foreach loop as follows: foreach ($array as $value) { if($condition == true) {//do some code} } The only thing is that I'd like to stop iterating over the array once the if condition becomes false, for

Combining foreach and while in PHP

由 独自空忆成欢 提交于 2020-12-05 04:56:32
问题 This seems like it should be a simple question, but I can't find a good answer. Is there a way of putting a condition on a foreach loop? I'd like something like this: foreach ($array as $value WHILE $condition == true) { //do some code } Of course I could just put an if condition inside of the foreach loop as follows: foreach ($array as $value) { if($condition == true) {//do some code} } The only thing is that I'd like to stop iterating over the array once the if condition becomes false, for

How do I properly cancel Parallel.Foreach?

由 安稳与你 提交于 2020-12-03 17:12:39
问题 I've got code which looks something like this: Parallel.Foreach(ItemSource(),(item)=>DoSomething(item)); ItemSource() produces an infinite stream of items. I want the loop to exit once some condition has been met, and I'd rather do it without throwing an exception in DoSomething (I consider this approach a bad programming style). Ideally, there would be something like cancellationToken. I would call cancellationToken.Activate() in one or more threads, after which parallel.foreach would stop

JS forEach 用法

由 99封情书 提交于 2020-11-22 00:20:19
var a = ['A', 'B', 'C']; a.forEach(function (element, index, array) { // element: 指向当前元素的值 // index: 指向当前索引 // array: 指向Array对象本身 alert(element); }); 来源： oschina 链接： https://my.oschina.net/u/2424557/blog/1552819
订阅 foreach