In previous iterations of vue.js, developers had the ability to generate a dynamic select list utilizing optgroups similar to the example found here.
In the latest versions of vue, the documentation suggests using v-for within the options instead of optgroups. Is there a solution or alternative approach for this change in functionality?
If you want to create a list that includes optgroups, one efficient way is to use nested v-for loops. The outer loop can be used for the optgroup, while the inner loop handles the option. Take a look at this example:
const app = new Vue({
el: '#app',
data: {
selected: '',
optgroups: [
{ label: 'A', options: ['a', 'b'] },
{ label: 'B', options: ['c', 'd'] }
]
}
})<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/1.0.26/vue.js"></script>
<div id="app">
<select v-model="selected">
<optgroup :label="group.label" v-for="group in optgroups">
<option :value="option" v-for="option in group.options">{{ option }}</option>
</optgroup>
</select>
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