几天前,我读到了 binding.scala,发现它很酷,因此我决定编写自己的单页应用程序。
问题是我正在尝试将“li”项添加到“ul”元素中,但似乎组件Want没有看到更新。
下面的代码:
case class Movie(title: Var[String], raring: Var[Int], watched: Var[Boolean])
var movies = Vars.empty[Movie]
@dom def Want = {
println(movies.bind, "!@#!@#!@#!")
<div class="want">
<ul>
{for (movie <- movies.value) yield {
<li>
<div>
<span>
{movie.title.bind}
</span>
<button onclick={event: Event => {
event.preventDefault()
movies.value.remove(movies.value.indexOf(movie))
println(movies.value)
}}></button>
</div>
</li>
}}
</ul>
</div>
当我改变电影时,什么也没有发生。
更新
在下面的评论之后,我更新了代码:
def remove(movie:Movie) = {
movies.value.-=(movie)}
@dom def Want = {
println(movies, "!@#!@#!@#!")
<div class="want">
<ul>
{for (movie <- movies.bind) yield {
<li>
<div>
<span>
{movie.title.bind}
</span>
<button onclick={event: Event => {
event.preventDefault()
remove(movie)
}}></button>
</div>
</li>
}}
</ul>
</div>
但是,代码不起作用。