"Utilize Vue.js interpolation to dynamically insert a prop value into the template

Question

"Utilize Vue.js interpolation to dynamically insert a prop value into the template

One of the challenges I'm facing is working with a component that accepts props like this:

<BarChart 
  header="header name"
  dataPoint="data_to_look_at"
  size=35
/>

My goal is to utilize the dataPoint prop within my component, potentially by incorporating it into an interpolated string to access object items in this manner:

// Example usage within a v-for loop iterating over an object
{{ data[index].attributes.${dataPoint} }}

This approach doesn't seem to be effective, and I'm seeking guidance on how to successfully achieve this functionality. Are there any resources or best practices you recommend for interpolating props within Vue.js components?

string interpolation Vue js

I've explored similar queries without much success, such as:

How can I solve "Interpolation inside attributes has been removed. Use v-bind or the colon shorthand"? Vue.js 2

Could you offer insights on effectively interpolating props within Vue.js components for optimal results?

javascript vue.js interpolation vue-props

Answer 1

Answer №1

Insight : While looping through your item list using the v-for loop, it is unnecessary to access the item by index. You can simplify it like this :

<p v-for="data in items" :key="data.id">
    {{ data.attributes[datapoint] }}
</p>

See a demonstration here :

Vue.component('child', {
    data: function() {
    return {
        items: [{
        id: 1,
        attributes: {
            name: 'Alpha'
        }
      }, {
        id: 2,
        attributes: {
            name: 'Beta'
        }
      }, {
        id: 3,
        attributes: {
            name: 'Gamma'
        }
      }]
    }
  },
  props: ['header', 'datapoint'],
  template: `<div>
    <p v-for="data in items" :key="data.id">{{ data.attributes[datapoint] }}</p>
  </div>`
});

var app = new Vue({
  el: '#app'
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
  <child header="Header Name" dataPoint="name"></child>
</div>

Answer 2

Insight : While looping through your item list using the v-for loop, it is unnecessary to access the item by index. You can simplify it like this :

<p v-for="data in items" :key="data.id">
    {{ data.attributes[datapoint] }}
</p>

See a demonstration here :

Vue.component('child', {
    data: function() {
    return {
        items: [{
        id: 1,
        attributes: {
            name: 'Alpha'
        }
      }, {
        id: 2,
        attributes: {
            name: 'Beta'
        }
      }, {
        id: 3,
        attributes: {
            name: 'Gamma'
        }
      }]
    }
  },
  props: ['header', 'datapoint'],
  template: `<div>
    <p v-for="data in items" :key="data.id">{{ data.attributes[datapoint] }}</p>
  </div>`
});

var app = new Vue({
  el: '#app'
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
  <child header="Header Name" dataPoint="name"></child>
</div>

"Utilize Vue.js interpolation to dynamically insert a prop value into the template

Answer №1

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