javascript - jQuery - 获取对此的引用

Question

function Request(params)
{
    // Stuff stuff stuff

    // And then

    $.ajax(
    {
        type: 'GET',
        url: 'someurl',
        success: this.done
    });
}

Request.prototype.done = function()
{
    // "this" in this context will not refer to the Request instance.
    // How to reach it?
}

Answer 1

您可以先捕获“this”:

function Request(params)
{
    // Stuff stuff stuff

    // And then

    var $this = this;

    $.ajax(
    {
        type: 'GET',
        url: 'someurl',
        success: function() { $this.done(); }
    });
}