leptos_dom::html::HtmlElement::dyn_classes How to use?

[git-lloyd]

when function input parameter classes （signal） from vec!["aaa".into()] -> vec!["bbb".into()]
the div class is empty.

leptos = "0.4"

#[component]
pub fn content(
cx: Scope,
children: Children,
#[prop(optional, into)] classes: MaybeSignal<Vec>,
#[prop(optional, into)] tag: String,
) -> impl IntoView {
let mut tag = tag;
if tag.is_empty() {
tag = "div".into();
}
let element = leptos::html::custom(cx, leptos_dom::html::Custom::new(tag));
let element = element.child(children(cx));
let classes = move || {
let mut classes = classes.get();
classes.push("content".into());
classes
};
element.dyn_classes(classes)
}

[gbj]

Thanks, it turns out it was just bugged. PR to fix it here #1265

[git-lloyd]

Thank you very much!
at leptos_dom::html::HtmlElement.dyn_classes:line752
panic!("failed to add class \ {prev_class}, error: {err:#?}") should be panic!("failed to remove class \ {prev_class}, error: {err:#?}") ？

code snippet：
// Remove old classes
for prev_class in old_classes.clone() {
if !new_classes.iter().any(|c| c == &prev_class) {
class_list.remove_1(prev_class).unwrap_or_else(
|err| {
panic!(
"failed to add class
{prev_class}, error: {err:#?}"
)
},
);
}
}