htmx - 当所有输入字段在 Hyperscript 中都有效时启用提交按钮？

Question

我在玩 htmx 和 hyperscript，我希望在表单中所有必需的输入字段都有效时启用“提交按钮”(添加用户)。在这种情况下，必须定义一个非空名称和一个有效的电子邮件地址。

<form hx-post="/example" hx-target="#table tbody" hx-swap="beforeend">
        <label class="control-label" for="nameInput">Name</label>
        <input id="nameInput" name="name" class="form-control" type="text" required placeholder="John Doe"/>
        
        <label class="control-label" for="emailInput">Email</label>
        <input id="emailInput" name="email" class="form-control" type="email" required placeholder="john@doe.org"/>
        <button _="<what should I write here??>" class="btn btn-primary" disabled>Add User</button>
    </div>
</form>

我应该写什么而不是 <what should I write here??>实现这一目标？

Answer 1

像这样的东西应该可以工作:

<button _="on change from closest <form/>
             for elt in <[required]/>
               if the elt's value is empty
                 add @disabled then exit
               end
             end
             remove @disabled" class="btn btn-primary" disabled>Add User</button>

https://jsfiddle.net/xy8vn5jk/20/