有谁知道我在这里做错了什么?在console.log上,它返回750或2000,但是在我的情况下似乎找不到图标并添加图标类。
JS
$("a.image-select").click(function(){
$('.loading').show();
selectedImage = $(this).data('image');
$("a.image-select").removeClass('selected');
$(this).addClass('selected');
$('.image-warning').hide();
$(".image-original").attr('src', "imgd.php?src="+selectedImage+"&quality=100&w=500&h=500&cf");
$(".image-optimised").attr('src', "imgd.php?src="+selectedImage+"&quality=100&w=500&h=500&cf");
$.ajax({
url: "imgd.php?src="+selectedImage+"&quality=100&json",
dataType: "json"
}).success(function(data){
$('.image-details-quality').html('100');
var sizeInMB = (JSON.stringify(data['size']) / (1024*1024)).toFixed(2);
var sizeInKB = (JSON.stringify(data['size']) / 1024).toFixed(2);
$('.image-details-size').html(sizeInMB + 'mb' + ' / ' + sizeInKB + 'kb');
$('.image-details-dims').html(data['width'] + 'px' + ' x ' + data['height'] + 'px');
$('.image-details-type').html(data['mimeType']);
// if image is more than 2000 show error
if(data['width'] > 2000){
$('.image-warning').show();
}
// set thumbnail icons
if(data['width'] == 2000){
$(this).find('span.device-icon').addClass('glyphicon-phone');
} else if(data['width'] == 750) {
$(this).find('span.device-icon').addClass('glyphicon-blackboard');
}
console.log(data['width']);
$('#slider').slider('refresh');
$('.image-details').show();
$('.loading').hide();
});
});
这部分有问题
// set thumbnail icons
if(data['width'] == 2000){
$(this).find('span.device-icon').addClass('glyphicon-phone');
} else if(data['width'] == 750) {
$(this).find('span.device-icon').addClass('glyphicon-blackboard');
}
HTML示例
<a href="#" data-image="LUXE-ESSENTIALS-MOB.jpg" class="image-select selected">
<span class="select-icon glyphicon glyphicon-ok-circle"></span>
<img src="imgd.php?src=LUXE-ESSENTIALS-MOB.jpg&quality=100&width=80&height=80&crop-to-fit" data-pin-nopin="true">
<span class="device-icon glyphicon"></span>
</a>
最佳答案
成功回调中的$(this)
不再引用clicked元素,因此您应将其保存在变量中,然后在回调中使用它,例如:
var _this = $(this);
$.ajax({
url: "imgd.php?src="+selectedImage+"&quality=100&json",
dataType: "json"
}).success(function(data){
...
// set thumbnail icons
if(data['width'] == 2000){
_this.find('span.device-icon').addClass('glyphicon-phone');
} else if(data['width'] == 750) {
_this.find('span.device-icon').addClass('glyphicon-blackboard');
}
...
});
或者,您也可以使用上下文属性,例如:
$.ajax({
context: this,
url: "imgd.php?src="+selectedImage+"&quality=100&json",
dataType: "json"
success: function(response){
//You can use $(this) now
}
});
希望这可以帮助。
关于javascript - jQuery此查找选择器不起作用,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/42028035/