jquery - 如何从每个语句退出(中断函数)？

Question

例如我使用以下代码:

$("img").each(function(i){
     x += $("img:eq(" + i ")").width();
     if(some conditional) return;
});

返回后我不想向 x 添加任何内容，我该如何实现？

Answer 1

来自JQuery doco ...

We can break the $.each() loop at a particular iteration by making the callback function return false. Returning non-false is the same as a continue statement in a for loop; it will skip immediately to the next iteration.

所以本质上这意味着......

返回 false; = break;

返回 true; 或 return; = 继续;