喜欢或不喜欢函数仅工作一次，就好像“喜欢”变量不再是 true 或 false，这将是有效值。第一次它工作正常(喜欢和不喜欢)，但第二次出现“其他”警报，这对我来说绝对不清楚。您能解释一下那里可能出了什么问题吗？正如我通过警报检查的那样，html 中的 Bool 已正确更新。
带有少量 django 模板代码的 HTML，请勿注意:
<div class="incriminate_like" data-post-pk="{{ answer.pk }} " data-who-likes-id="{{ request.user.id }} " >
<div class="data_div" data-bool="false">
<img class="like_image" src="{% static "img/like.png" %}"/>
</div>
</div>
JQUERY:
$('.incriminate_like').click(function(){
var post_pk = $(this).data("post-pk");
var who_likes_id = $(this).data("who-likes-id");
var that = $(this);
var liked = $(this).find(".data_div").data("bool");
function makeLiked(){
that.find("img").attr("src","{% static 'img/likered.png' %}");
that.find(".data_div").data("bool","true");
// just incriminating
var like_number_original = that.next().html();
var integer_of_like_number_original = parseInt(like_number_original);
var plus_one_number = integer_of_like_number_original + 1
that.next().html(plus_one_number);
}
function makeDisliked(){
that.find("img").attr("src","{% static 'img/like.png' %}");
that.find(".data_div").data("bool","false");
// just incriminating
var like_number_original = that.next().html();
var integer_of_like_number_original = parseInt(like_number_original);
var plus_one_number = integer_of_like_number_original - 1
that.next().html(plus_one_number);
}
if (liked == false) {
ajaxPost('/like/', {'post_pk': post_pk,'who_likes_id':who_likes_id,'whom_id':whom_id}, function(){
makeLiked();
})
}
else if (liked == true ) {
ajaxPost('/dislike/', {'post_pk': post_pk,'who_likes_id':who_likes_id,'whom_id':whom_id}, function(){
makeDisliked();
})
}
else {
alert('error');
}
})
最佳答案
问题是，如果你调用 makeLiked() 或 makeDisliked()，你将 data-bool 值设置为字符串，这就是为什么 like == true (甚至 like == false)仅返回 false。 尝试设置如下内容:
that.find(".data_div").data("bool", true);
(注意第二个参数不带“”)
<小时/>所以最终的代码应该是这样的:
$('.incriminate_like').click(function() {
var post_pk = $(this).data("post-pk");
var who_likes_id = $(this).data("who-likes-id");
var that = $(this);
var liked = $(this).find(".data_div").data("bool");
function makeLiked() {
that.find("img").attr("src", "{% static 'img/likered.png' %}");
that.find(".data_div").data("bool", true);
// just incriminating
var like_number_original = that.next().html();
var integer_of_like_number_original = parseInt(like_number_original);
var plus_one_number = integer_of_like_number_original + 1
that.next().html(plus_one_number);
}
function makeDisliked() {
that.find("img").attr("src", "{% static 'img/like.png' %}");
that.find(".data_div").data("bool", false);
// just incriminating
var like_number_original = that.next().html();
var integer_of_like_number_original = parseInt(like_number_original);
var plus_one_number = integer_of_like_number_original - 1
that.next().html(plus_one_number);
}
if (liked == false) {
ajaxPost('/like/', {
'post_pk': post_pk,
'who_likes_id': who_likes_id,
'whom_id': whom_id
}, function() {
makeLiked();
})
} else if (liked == true) {
ajaxPost('/dislike/', {
'post_pk': post_pk,
'who_likes_id': who_likes_id,
'whom_id': whom_id
}, function() {
makeDisliked();
})
} else {
alert('error');
}
})
关于javascript - 实现点赞功能时出现问题。函数只运行一次，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40456001/