foreach 相当于 jquery 中的 php?
JQuery 中有没有像 PHP 一样的 foreach 代码?我在 php 中有一个代码,比如
Is there a foreach code in JQuery as in PHP? I have a code in php,like
<?php foreach ($viewfields as $viewfield): ?>
if("<?php echo $viewfield['Attribute']['required'];?>"=='true'){
$("<span class='req'><em> * </em></span>").appendTo("#fb_contentarea_col1down21 #label<?php echo $viewfield['Attribute']['sequence_no']?>");
}
if(<?=$viewfield['Attribute']['type'];?>=='text'||<?=$viewfield['Attribute']['type'];?>=='date'||<?=$viewfield['Attribute']['type'];?>=='number'){
$("<input id=input<?=$viewfield['Attribute']['sequence_no'];?> type= 'text' style= 'width:<?=$viewfield['Attribute']['size'];?>px' data-attr=<?=$viewfield['Attribute']['type'];?> ></input><br>").appendTo("#fb_contentarea_col1down21 #<?=$viewfield['Attribute']['sequence_no'];?>");
}
else if(<?=$viewfield['Attribute']['type'];?>=='textarea'){
$("<textarea style= 'width:<?=$viewfield['Attribute']['size'];?>px' data-attr=<?=$viewfield['Attribute']['type'];?> id=input<?=$viewfield['Attribute']['sequence_no'];?>></textarea><br>").appendTo("#fb_contentarea_col1down21 #<?=$viewfield['Attribute']['sequence_no'];?>");
}
在 Jquery 中是否有任何等效的 foreach?如何在 jQuery 中实现同样的功能?
Is there any equivalent of foreach in Jquery? How can I accomplish this same functioality in jQuery?
编辑 1:
我认为它有效,但出现错误.代码和错误信息如下.
I thought it worked but I get an error. The code and the error message is given below.
for(<?=$viewfield;?> in <?=$viewfields;?>){
if("<?=$viewfield['Attribute']['required'];?>"=='true'){
$("<span class='req'><em> * </em></span>").appendTo("#fb_contentarea_col1down21 #label<?php echo $viewfield['Attribute']['sequence_no']?>");
}
if(<?=$viewfield['Attribute']['type'];?>=='text'||<?=$viewfield['Attribute']['type'];?>=='date'||<?=$viewfield['Attribute']['type'];?>=='number'){
$("<input id=input<?=$viewfield['Attribute']['sequence_no'];?> type= 'text' style= 'width:<?=$viewfield['Attribute']['size'];?>px' data-attr=<?=$viewfield['Attribute']['type'];?> ></input><br>").appendTo("#fb_contentarea_col1down21 #<?=$viewfield['Attribute']['sequence_no'];?>");
}
else if(<?=$viewfield['Attribute']['type'];?>=='textarea'){
$("<textarea style= 'width:<?=$viewfield['Attribute']['size'];?>px' data-attr=<?=$viewfield['Attribute']['type'];?> id=input<?=$viewfield['Attribute']['sequence_no'];?>></textarea><br>").appendTo("#fb_contentarea_col1down21 #<?=$viewfield['Attribute']['sequence_no'];?>");
}
}
错误信息:
语法错误for(在数组中)
syntax error for( in Array)
谁能帮我..
推荐答案
$.each 功能类似.
它允许您使用可以访问每个项目的回调函数迭代数组:
It allows you to iterate arrays using a callback function where you have access to each item:
var arr = [ "one", "two", "three", "four", "five" ];
$.each(arr, function(index, value) {
// work with value
});
知道也许有用,如果你想打破循环,你可以用 return false;
或者如果你只想跳过一次迭代(继续),你 return真;
Maybe is useful to know, if you want to break the loop, you can do it with return false;
or if you want to skip only one iteration (continue), you return true;
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