I am trying to figure out how to properly mirror two input fields and dynamically change them based on a checkbox value. This is the best what I can think of using computed property with get and set features. The problem is when the user types (1)"ABC" in shipping details, (2)unchecks (copy_chekcbox=false), (3)types "123" in billing details, and (4)checks back (copy_chekcbox=true) (5)the billing details doesn't revert to shipping details, which is what I need. Image with steps
Also, is there any shorter and more optimal way to mirror two fields and change their values based on checkbox value?
Thank you in advance.
<!DOCTYPE html>
<html>
<head>
<title>My first Vue app</title>
<script src="https://unpkg.com/vue"></script>
</head>
<body>
<div id="app">
<p>Shipping details</p>
<input v-model="shipping" type="text" />
<p>Same as shipping: <input type="checkbox" v-model="copy_chekcbox" /></p>
<p>Billing details</p>
<input v-model="billing" type="text" :disabled="copy_chekcbox" />
</div>
<script>
var app = new Vue({
el: '#app',
data: {
shipping_data: '',
billing_data: '',
copy_chekcbox: true,
},
computed: {
shipping: {
get: function() {
return this.shipping_data
},
set: function(newValue) {
if (!this.copy_chekcbox) {
this.shipping_data = newValue
} else {
this.billing_data = newValue
this.shipping_data = newValue
}
},
},
billing: {
get: function() {
return this.billing_data
},
set: function(newValue) {
if (!this.copy_chekcbox) {
this.billing_data = newValue
} else {
this.billing_data = this.shipping_data
}
},
},
}
})
</script>
</body>
</html>In my opinion I think the easiest way is use two inputs with v-if:
<p>Shipping details</p>
<input v-model="shipping" type="text">
<p>Same as shipping: <input type="checkbox" v-model="copy_chekcbox"></p>
<p>Billing details</p>
<template v-if="copy_chekcbox">
<input v-model="shipping" type="text">
<template>
<template v-else>
<input v-model="billing" type="text">
</template>
The main advantage of this method is that your JavaScript code remains simple.
try this:
billing: {
get: function() {
return this.copy_checkbox ? this.shipping_data : this.billing_data
},
it should rerun the computed function for your billing data when you change copy_checkbox and thus update your billing_data.