Get each HTML element in a Vue slot from JavaScript - vue.js

Question

I am creating a custom select component in VueJS 2. The component is to be used as below by the end-user.
<custom-select>
<option value="value 1">Option 1</option>
<option value="value 2">Option 2</option>
<option value="value 3">Option 3</option>
...
<custom-select>
I know the Vue <slot> tag and usage. But how do I get the user provided <option> tags as an array/list so I can get its value and text separately for custom rendering inside the component?

Answer 1

Those <option>s would be found in the default slot array (this.$slots.default), and you could get to the inner text and value of the <option>s like this:
export default {
mounted() {
const options = this.$slots.default.filter(node => node.tag === 'option')
for (const opt of options) {
const innerText = opt.children.map(c => c.text).join()
const value = opt.data.attrs.value
console.log({ innerText, value })
}
}
}
demo

Answer 2

You can achieve it, using v-bind and computed property
new Vue({
el: '#vue',
data: {
selected: '',
values: [
{
code: '1',
name: 'one'
},
{
code: '2',
name: 'two'
}
]
},
computed: {
selectedValue() {
var self = this;
var name = "";
this.values.filter(function(value) {
if(value.code == self.selected) {
name = value.name
return;
}
})
return name;
}
}
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="vue">
<div>
<select v-model="selected">
<option v-for="value in values" v-bind:value="value.code">
{{ value.name }}
</option>
</select>
</div>
<strong>{{ selected }} {{ selectedValue }}</strong>
</div>