可以有人告诉我为什么循环没有停止后5进入？
http://jsbin.com/ucuqot/edit#preview
http://jsbin.com/ucuqot/edit#preview
$(document).ready(function()
{
someArray = new Array();
someArray[0] = 't5';
someArray[1] = 'z12';
someArray[2] = 'b88';
someArray[3] = 's55';
someArray[4] = 'e51';
someArray[5] = 'o322';
someArray[6] = 'i22';
someArray[7] = 'k954';
var test = findXX('o322');
});
function findXX(word)
{
$.each(someArray,function(i)
{
$('body').append('-> '+i+'<br />');
if(someArray[i] == 'someArray')
{
return someArray[i]; //<--- did not stop the loop!
}
});
}
提前致谢！
解决方法
因为当你在每个循环中使用return语句时，一个“非假”值将作为一个continue，wheras false将作为一个break。您将需要从每个函数返回false。这样的东西：
function findXX(word) {
var toReturn;
$.each(someArray,function(i) {
$('body').append('-> '+i+'<br />');
if(someArray[i] == word) {
toReturn = someArray[i];
return false;
}
});
return toReturn;
}
从docs：
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.
