How in this component to set a class at the top level?

Question

Vue.js

Vue.component('v-dropdown-list', {
  render(h) {
    const items = this.$slots.default;
    return h('div', [
      items.slice(0, this.minShow),
      h('div', {
        ref: 'dropdown',
        attrs: {
          style: `overflow: hidden; transition: height ${this.duration}ms`
        },
      }, items.slice(this.minShow)),
    ]);

Answer 1

As the second parameter, pass an object with data, in which you will need to specify the class property:

return h('div', {
  class: здесь строка с классами, или объект, или массив
}, [
  ...

Well, in general - it will be useful to read this .