JSX_VUE3.js

//usage
<p>{{ testModel }}</p>
  <mySelect v-model="testModel" :options="testSelect" />


// declaration
const mySelect = {
  props: ["modelValue", "options"],
  emits: ["update:modelValue"],
  render() {
    return (
      <>
        <select
          onChange={(event)=>this.$emit("update:modelValue", event.target.value)}
          v-model={this.modelValue}
          name="cars"
          id="cars"
        >
          {this.options.map((o) => {
            return <option value={o}>{o}</option>;
          })}
        </select>
      </>
    );
  },
};