Transitioning my code from the template file to the render function is posing a challenge for me. Currently, I have the following HTML snippet:
:open.sync="state"
I'm unsure of how to convert this into JavaScript. How can I incorporate this into the createElement function?
Keep in mind
:open.sync="state"
is essentially just a shortcut for
:open="state" @update:open="state = $event"
In the render function, it would look like this:
createElement('child', {
props: { // :open="state"
"open": this.state
},
on: { // @update:open="state = $event"
"update:open": ($event) => {
this.state = $event;
}
}
})
See it in action here:
Vue.component('child', {
template: '#child',
props: ['open']
})
new Vue({
el: '#app',
data: {
message: 'Hello Vue.js!'
},
render(createElement) {
return (
createElement('div', [
this.message,
createElement('br'),
createElement('child', {
props: {
"open": this.message
},
on: {
"update:open": ($event) => {
this.message = $event;
}
}
})
])
);
}
})<script src="https://unpkg.com/vue"></script>
<div id="app">
<p>{{ message }}</p>
<child :open.sync="message"></child>
</div>
<template id="child">
<div>
<input type="text" :value="open" @input="$emit('update:open', $event.target.value)">
open: {{ open }}
</div>
</template>In the month of March 2021, I took inspiration from @acdcjunior and devised this clever solution:
// Starting from the Parent Component
<custom-input
:open.sync="formData.groupName"
/>
// Moving on to the Child Component
<div class="wrapper">
<input
type="text"
class="full-width"
:value="open" @input="$emit('update:open', $event)"
/>
</div>
By the way, his initial approach was ineffective as $event.target.value turned out to be undefined.
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