The Vue property or method is unrecognized when utilizing the non-minified version

Question

The Vue property or method is unrecognized when utilizing the non-minified version

When I attempted to display the name 'John' using an inline template in a simple Vue example, I encountered the following error message:

[Vue warn]: Property or method "name" is not defined on the instance but referenced during render. Make sure that this property is reactive, either in the data option, or for class-based components, by initializing the property. See: https://v2.vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.

Surprisingly, when I switched to the minified version of Vue:

<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="afd9dacaef9d8199819d">[email protected]</a>/dist/vue.min.js"></script>

The code successfully displayed 'John' without any errors. Could this be a bug or am I overlooking something in my use of Vue?

Vue.component('profilecontent', {});

var content = new Vue({
  el: '#profile-content-wrapper',
  data: {
    name: "John",
  }
})

<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="8dfbf8e8cdbfa3bba3bf">[email protected]</a>/dist/vue.js"></script>

<!-- Minify version works
<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="6e181b0b2e5c4058405c">[email protected]</a>/dist/vue.min.js"></script>
-->

<div id="profile-content-wrapper">
  <profilecontent inline-template>
    <div>
      <div>{{name}}</div>
    </div>
  </profilecontent>
</div>

javascript vue.js vuejs2 vue-component

Answer 1

Answer №1

Switching to the minified version of Vue did not solve the bug, but rather masked potential warnings that the unminified version would have shown when incorrect actions are performed.

Your usage of inline-template is causing Vue to search for the name variable within the profilecontent component instead of the main app. To avoid this, it is recommended to pass name as a prop to the component in order to eliminate the warning, even in development mode:

Vue.component('profilecontent', {props: ['name']});

var content = new Vue({
  el: '#profile-content-wrapper',
  data: {
    name: "John",
  }
})

<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="0177746441332f372f33">[email protected]</a>/dist/vue.js"></script>

<div id="profile-content-wrapper">
  <profilecontent inline-template :name="name">
    <div>
      <div>{{name}}</div>
    </div>
  </profilecontent>
</div>

(However, it remains unclear why the name variable is still accessible by the component when warnings are suppressed; typically, variables inside an inline-template should belong to the component, not its parent.)

Answer 2

Switching to the minified version of Vue did not solve the bug, but rather masked potential warnings that the unminified version would have shown when incorrect actions are performed.

Your usage of inline-template is causing Vue to search for the name variable within the profilecontent component instead of the main app. To avoid this, it is recommended to pass name as a prop to the component in order to eliminate the warning, even in development mode:

Vue.component('profilecontent', {props: ['name']});

var content = new Vue({
  el: '#profile-content-wrapper',
  data: {
    name: "John",
  }
})

<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="0177746441332f372f33">[email protected]</a>/dist/vue.js"></script>

<div id="profile-content-wrapper">
  <profilecontent inline-template :name="name">
    <div>
      <div>{{name}}</div>
    </div>
  </profilecontent>
</div>

(However, it remains unclear why the name variable is still accessible by the component when warnings are suppressed; typically, variables inside an inline-template should belong to the component, not its parent.)

Answer 3

Answer №2

One way to assemble your component is by utilizing <slot></slot>, allowing you to place other elements inside it as demonstrated below:

Vue.component('profilecontent', {
  template: `<h1><slot></slot></h1>`
});

var content = new Vue({
  el: '#profile-content-wrapper',
  data() {
    return {
      name: "John",
    }
  }
})

<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="96e0e3f3d6a4b8a0b8a4">[email protected]</a>/dist/vue.js"></script>

<!-- Minify version works
<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="8cfaf9e9ccbea2baa2be">[email protected]</a>/dist/vue.min.js"></script>
-->

<div id="profile-content-wrapper">
  <profilecontent>
    <div>
      <div>{{name}}</div>
    </div>
  </profilecontent>
</div>

If you are working with an inline template, you can include the name property in the data object of the component like this:

Vue.component('profilecontent', {
   data() {
    return {
      name: "John",
    }
  }
});

var content = new Vue({
  el: '#profile-content-wrapper',
 
})

<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="4036352500726e766e72">[email protected]</a>/dist/vue.js"></script>

<!-- Minify version works
<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="a8deddcde89a869e869a">[email protected]</a>/dist/vue.min.js"></script>
-->

<div id="profile-content-wrapper">
  <profilecontent inline-template>
    <div>
      <div>{{name}}</div>
    </div>
  </profilecontent>
</div>

Answer 4

One way to assemble your component is by utilizing <slot></slot>, allowing you to place other elements inside it as demonstrated below:

Vue.component('profilecontent', {
  template: `<h1><slot></slot></h1>`
});

var content = new Vue({
  el: '#profile-content-wrapper',
  data() {
    return {
      name: "John",
    }
  }
})

<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="96e0e3f3d6a4b8a0b8a4">[email protected]</a>/dist/vue.js"></script>

<!-- Minify version works
<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="8cfaf9e9ccbea2baa2be">[email protected]</a>/dist/vue.min.js"></script>
-->

<div id="profile-content-wrapper">
  <profilecontent>
    <div>
      <div>{{name}}</div>
    </div>
  </profilecontent>
</div>

If you are working with an inline template, you can include the name property in the data object of the component like this:

Vue.component('profilecontent', {
   data() {
    return {
      name: "John",
    }
  }
});

var content = new Vue({
  el: '#profile-content-wrapper',
 
})

<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="4036352500726e766e72">[email protected]</a>/dist/vue.js"></script>

<!-- Minify version works
<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="a8deddcde89a869e869a">[email protected]</a>/dist/vue.min.js"></script>
-->

<div id="profile-content-wrapper">
  <profilecontent inline-template>
    <div>
      <div>{{name}}</div>
    </div>
  </profilecontent>
</div>

The Vue property or method is unrecognized when utilizing the non-minified version

Answer №1

Answer №2

Similar questions

Uploading PDF files using PHP without the need for traditional input boxes

Steps for toggling between enabling and disabling the 2 instances of bvalidator

Top tip: Utilize jQuery for the most effective method of adding content to the HTML of a paragraph situated

Having difficulty retrieving the current time of an audio element using jQuery

Best Practice for Delivering JavaScript Files with Node.js Ajax?

Using VueJs and typescript, transform the input image into Base64 format

What causes Gun.js to generate duplicate messages within a ReactJs environment?

Connect the Vue component to the Vue instance

Angular's innerHTML dilemma

Defining the signature of an unnamed function in TypeScript

Best practices for working with Angular, Laravel 4, and managing MySQL databases

Finding Location Information Based on Latitude and Longitude Using Jquery

Sketchup's Vue.js integration allows for a seamless and intuitive interface

What is the best way to utilize "exports" in package.json for TypeScript and nested submodules?

What is the best way to achieve a smooth rotation effect ranging from 1° to 359° using HTML/CSS in conjunction with JavaScript

Implementing pagination in React: A step-by-step guide

React useState Error: Exceeded maximum re-renders. React enforces a limit on the number of renders to avoid getting stuck in an endless loop

The Google Visualization chart fails to display properly once CSS is applied

Single quotation mishap in JSON

summing 3 numbers to a total of 100 percent