Javascript 如何使用 jQuery 从 .each 循环创建数组
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How to create an array from .each loop with jQuery
提问by Iladarsda
How can I create an array from inside of the '.each loop' and use it outside of the loop?
如何从“.each 循环”内部创建数组并在循环外部使用它？
My .each loop:
我的.each loop：
// Loop through all but button with class .apply
$('.profile-nav ul li a').not('.apply').each( function() {
// if currently loop through element has .cur class
if( $(this).hasClass('cur') ) {
//Get the first class of the match element
var ClassesToApply = $(this).prop('class').split(' ')[0];
}
//How can I create an array from all ClassesToApply?
//var arr = jQuery.makeArray(ClassesToApply);
// This will create an array, but with one element only
});
How can I create an array from all var = ClassesToApply?
如何从所有创建一个数组var = ClassesToApply？
And than how can I do something with this array? e.g
比我怎么能用这个数组做点什么？例如
$( allClasses from an array as a selectors).doStuff();
$( allClasses from an array as a selectors).doStuff();
回答by James Allardice
If you declare a variable outside of the each, it will be accessible inside the each:
如果您在 之外声明一个变量each，它将可以在 内部访问each：
var yourArray = [];
$('.profile-nav ul li a').not('.apply').each(function() {
if($(this).hasClass('cur')) {
yourArray.push($(this).prop('class').split(' ')[0]);
}
});
//Here, yourArray will contain the strings you require.
Although as others have shown, there are ways to shorten your code significantly.
尽管正如其他人所展示的，有一些方法可以显着缩短您的代码。
回答by Anshu
fxnReqValidation = function () {
var InputTagArray = new Array;
InputTagArray = document.getElementsByTagName("input");
for (var iCnt = 1; iCnt <= InputTagArray.length; iCnt++) {
if ((g_Json[InputTagArray[iCnt].name].required == true) && (InputTagArray[iCnt].value == "")) {
$("#errormsg").text("please enter all required fields");
}
return false;
}
}
回答by ?ime Vidas
You could do:
你可以这样做：
var arr = $( 'a.cur:not(.apply)', '.profile-nav' ).map( function () {
return $( this ).prop( 'class' ).split( ' ' )[0];
}).get();
回答by BGerrissen
var list = $(".profile-nav ul li a.cur:not(.apply)");
list.each(function(){
// do your thing!
});
