Javascript 使用 jQuery each() 函数循环遍历 classname 元素
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Using the jQuery each() function to loop through classname elements
提问by Brett
I am trying to use jQuery to loop through a list of elements that have the same classname & extract their values.
我正在尝试使用 jQuery 遍历具有相同类名的元素列表并提取它们的值。
I have this..
我有这个..
function calculate() {
// Fix jQuery conflicts
jQuery.noConflict();
jQuery(document).ready(function(){
// Get all items with the calculate className
var items = jQuery('.calculate');
});
}
I was reading up on the each() function though got confused how to use it properly in this instance.
我正在阅读 each() 函数，但对如何在这种情况下正确使用它感到困惑。
回答by Darin Dimitrov
jQuery('.calculate').each(function() {
var currentElement = $(this);
var value = currentElement.val(); // if it is an input/select/textarea field
// TODO: do something with the value
});
and if you wanted to get its index in the collection:
如果你想在集合中获取它的索引：
jQuery('.calculate').each(function(index, currentElement) {
...
});
