jQuery-'this'选择器在回调函数中不起作用 [英] jQuery - 'this' selector doesn't work inside callback function

问题描述

可能重复:
$(this)在函数中不起作用

Possible Duplicate:
$(this) doesn't work in a function

我正在用jQuery写帖子删除代码，删除本身是通过对后备对象的后请求完成的，服务器返回200后，我想在客户端删除此帖子.

I'm writing post removing code in jQuery, The removing itself is made via post-request to backeds, after server returns 200, I want to delete this post on client-side.

$('.delete-post').click(function() {
    $.post($(this).attr('href'), {}, function(data) {
        $(this).closest('.post').remove();
    });
    return false;
});

但是，我注意到在function(data){...)内部选择器'this'不起作用.我需要使用类'.post'移除最接近$('.delete-post') div的位置.如何解决这个问题?谢谢！

However, I've noticed that inside function(data) {...) selector 'this' doesn't work. I need to remove closest to $('.delete-post') div with class '.post'. How to manage this problem? Thanks!

推荐答案

$(this)存在于click event中，但function(data) {不是单击事件rather callback function的一部分.因此，请将$(this)保存在实例that的某个变量中，以备后用.

$(this) exists in the click event but function(data) { is not part of click event rather callback function. So save the $(this) in some variable for instance that for later use.

尝试一下:

$('.delete-post').click(function(e) {
    e.preventDefault();
    var that = $(this);
    $.post(that.attr('href'), { }, function(data) {
        // $(this).closest('.post').remove();
        that.closest('.post').remove();
    });
});

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