Javascript onclick使用for循环显示数组的最后一个元素 [英] Javascript onclick shows last element of array with for loop

问题描述

我没什么问题.我正在使用一家公司的API.我要求参加活动，他们还给我一系列活动.这是代码的一部分.

I have little problem. I am working with one companys API's. I request for activities and they return me array of activities. Here is part of code.

client.requestActivities(function(activities) {
        if (activities.length > 0) {
            for(i=0; i < activities.length; i++) {
                var activity = activities[i];
                activity.onStart(function() { alert(i+ " started"); });
                activity.onCredit(function() { alert(i+ " credit"); });
                activity.onClose(function() { alert(i+ " close"); });
                activity.onFinish(function() { alert(i+ " finish"); });
                            $('.Game-Screen-Footer').append('<div class="Game-Screen-Footer-Adv" id="foota'+i+'"><a href="javascript:;" ><img src="'+activity.image_url+'" alt="'+activity.display_text+'" width="190" height="110"></a></div>');
                document.getElementById('foota'+i+'').onclick = function() {
                ARNO.box.show({html:'<div id="socialVibeFancyBox0"></div>', close: false, width:activity.window_width, height:activity.window_height, openjs: 
                            function(){
                                client.loadActivityIntoContainer(activity, 'socialVibeFancyBox0');
                            }
                        });
            }
        }

}

通常，此函数返回具有3个元素的数组.但是，当我单击第一个活动时，onStart应该会提醒我(0个开始)，但是会提醒我(4个开始)，这意味着，它警告了i的最后一个元素.我该如何解决?我尝试了很多东西，但是我没有找到解决方案，也许您可​​以帮我吗?

Mostly, this function give back array with 3 elements. But when I click on first activity, onStart it should alert me (0 start), but it alerts (4 start), this means, that it alerts last element of i. How should I fix this? I tried a lot of stuff, but I haven't find solution, maybe you can help me?

推荐答案

这是关闭问题的另一种情况.试试这个:

This is yet another case of closure problems. Try this:

for( i=0; i<activities.length; i++) {
    (function(i) {
        // your code here
    })(i);
}

这篇关于Javascript onclick使用for循环显示数组的最后一个元素的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！