jQuery 保存局部变量以供稍后在代码中使用 [英] jQuery save local variable for use later on in the code

问题描述

无论如何，我可以在其函数之外保存或访问局部变量吗?考虑下面的代码:

Is there anyway that I can save or access a local variable outside of it's function? Consider the code below:

$( "#droppable2" ).droppable({
        activeClass: "ui-state-hover",
        hoverClass: "ui-state-active",
        accept: "#draggable3",
        drop: function( event, ui ) {

            jdc = $(this).attr("id"); //I need to use this value later
            $( this )
                .addClass( "ui-state-highlight" );
                var x = ui.helper.clone();   
                x.appendTo('body');

                var jdi = $("img").attr("id");// I need to use this value later

                $(this).droppable( 'disable' );
        }
    });

有没有办法获取两个变量(上面的 jdc 和 jdi)的值以供以后在函数之外使用?

Is there anyway to get the values of the two variables (jdc and jdi above) for later use outside of the function?

最终目标是获取可放置容器的 id 和放置元素的内容.

The ultimate goal is to get id of droppable container and content of dropped element.

推荐答案

试试这个:

jQuery(element).data(key,value);
// Store arbitrary data associated with the matched elements.

或在函数外声明变量.

var example;

function abc(){
   example = "12345";
}

abc();

console.log(example);

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