在函数之外询问变量

本文介绍了在函数之外询问变量的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我是jQuery的新手，想知道如何在此函数之外访问$ hidden： $（this）.hide（500，function（）

I'm new to jQuery and was wondering how I'd access $hidden outside of this function: $(this).hide(500, function ()

HTML

<div class="fl person"> 
    <input type="hidden" name="userSaved" value="1" /> 
    <img src="..." class="circle-mask" /> 
</div>

<div class="fl person"> 
    <input type="hidden" name="userSaved" value="2" /> 
    <img src="..." class="circle-mask" /> 
</div>

jQuery

<script>
$("div.person img").click(function () {    
    $(this).hide(500, function () {
        $(this).parent("div").empty();
        $(".main_page").appendTo("div.main_page").addClass("fl person"); 
        var saved_id_user_who_voted = $hidden = $(this).siblings('input');
    });

    /* attach a submit handler to the form */
    var saved_id_user_who_voted_val = "<?php echo $_SESSION['id']; ?>";

    /* stop form from submitting normally */
    event.preventDefault();

    /* Send the data using post and put the results in a div */
    $.ajax({
        url: "saveSavedUserToDatabase.php",
        type: "post",
        data: {saved_id_user_who_voted:saved_id_user_who_voted_val, saved_id_user_voted_on:saved_id_user_voted_on_val} 
    });
});
</script>

我希望能够访问当前函数之外的 saved_id_user_who_voted ，以便我可以使用.ajax发布它 - 现在它不在范围内。

I'd like to be able to access saved_id_user_who_voted outside of the current function so that I can post it using .ajax - right now it's not in scope.

感谢任何帮助。

推荐答案

在中执行您的AJAX请求隐藏回调。或者在隐藏回调之外声明变量。

Execute your AJAX request in the hide callback. Or declare the variable outside the hide callback.

$("div.person img").click(function () {
    $(this).hide(500, function () {
        $(this).parent("div").empty();
        $(".main_page").appendTo("div.main_page").addClass("fl person");
        var saved_id_user_who_voted = $hidden = $(this).siblings('input');

        /* attach a submit handler to the form */
        var saved_id_user_who_voted_val = "<?php echo $_SESSION['id']; ?>";

        /* stop form from submitting normally */
        event.preventDefault();

        /* Send the data using post and put the results in a div */
        $.ajax({
            url: "saveSavedUserToDatabase.php",
            type: "post",
            data: {
                saved_id_user_who_voted: saved_id_user_who_voted_val,
                saved_id_user_voted_on: saved_id_user_voted_on_val
            }
        });
    });
});

这篇关于在函数之外询问变量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！