Question

我有以下脚本。当我执行ajax函数时，它会使用更新后的值在控制台中正确打印photobombAvatar。但是，我无法将photobombAvatar更新为全局变量。

<script>
var photobombAvatar = "<?php echo $this->user_data['avatar']; ?>";

$(function () {

    var uploader = new ss.SimpleUpload({
        button: btn,
        url: '<?php echo $this->form_action; ?>',
        sessionProgressUrl: 'data/js/plugins/thisSCRIPT.php',
        name: 'file',
        debug: true,
        data: {name: 'upload_avatar'},
        responseType: 'json',
        onSubmit: function (filename, ext) {
        // do a bunch of stuff
        },

        onComplete: function(file, json) {
            if (json.success) {
                var pic = new Pic();
                var photobombAvatar = json.success;
                pic.src = json.success;
            }
            console.log(photobombAvatar);  
        }
    });
});


 //another js fxn that uses the updated global photobombAvatar.

</script>

我已经阅读了许多使用回调函数的示例，但似乎无法使其正常工作。这是我尝试过的一个示例：

 <script>
var photobombAvatar = "<?php echo $this->user_data['avatar']; ?>";

$(function photobomb(callback) {

    var uploader = new ss.SimpleUpload({
        button: btn,
        url: '<?php echo $this->form_action; ?>',
        sessionProgressUrl: 'data/js/plugins/thisSCRIPT.php',
        name: 'file',
        debug: true,
        data: {name: 'upload_avatar'},
        responseType: 'json',
        onSubmit: function (filename, ext) {
        // do a bunch of stuff
        },

        onComplete: function(file, json) {
            if (json.success) {
                var pic = new Pic();
                var photobombAvatar = json.success;
                pic.src = json.success;
                callback(json);
            }
            console.log(photobombAvatar); 
            updatedVAR(photobombAvatar); 
        }
    });
});

photobomb();

function updatedVAR(photobombAvatar) {
    console.log(photobombAvatar);

    // do the rest of the js I need with the updated photobombAvatar value.
}

</script>

预先感谢您的任何建议或想法。

Answer 1

您正在onComplete函数中定义新的photobombAvatar。在photobombAvatar之前删除var。喜欢：

 onComplete: function(file, json) {
            if (json.success) {
                var pic = new Pic();
                var photobombAvatar = json.success;
                pic.src = json.success;
                callback(json);
            }

更改为：

 onComplete: function(file, json) {
            if (json.success) {
                var pic = new Pic();
                photobombAvatar = json.success;
                pic.src = json.success;
                callback(json);
            }

使用Ajax成功结果更新全局变量

1 个答案: