I am in search of code similar to this:
<div v-for="item in items" :key="item">
{{ item }}
...
<div v-with:newValue="calculateValue(item)">
{{ newValue }}
</div>
</div>
I'm not sure what to call this pattern, but I have used something like it before and found it to be quite useful.
Utilizing computed properties allows you to create functions that modify values into something different.
For instance, consider the following code snippet.
<div id="example">
{{ message.split('').reverse().join('') }}
</div>
You can introduce a computed property to execute JavaScript code and then call it within the HTML template
<div id="example">
<p>Original message: "{{ message }}"</p>
<p>Computed reversed message: "{{ reversedMessage }}"</p> //computed function
</div>
var vm = new Vue({
el: '#example',
data: {
message: 'Hello'
},
computed: {
// a computed getter
reversedMessage: function () {
// `this` refers to the vm instance
return this.message.split('').reverse().join('')
}
}
})
Further information can be found in the official documentation
Example showing usage with v-for
<div v-for="k in keys" :key="k">
{{ k }}
<div>
{{ reversedMessage(k) }}
</div>
</div>
var vm = new Vue({
el: '#example',
computed: {
// a computed getter
reversedMessage(k){ //take the value for each k in keys
return k.split('').reverse().join('')
}
}
})
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