Tips on ensuring the <script> section of a Vuejs single file component loads prior to the <template> section

After posing my query here, I have come to the realization that the root of my problem might be due to the template loading before the script. This causes an error when it encounters an undefined variable, halting the script execution. The issue could potentially stem from the presence of use strict in one of my node_modules rather than my actual code.

Here is a snippet of how my components are structured:

<style lang="sass">
    .hero {
        color: white;
        padding-top: 10em;
    }
    .image {
        background: no-repeat;
        background-size: 100% 100%;
        height: 600px;
        box-shadow: inset 0 0 0 2000px rgba(0,0,50,0.3);
    }
</style>

<template>
    <div :style="{ backgroundImage: 'url(' + components.carousel.content.image + ')' }" class="image">
        <div class="row hero">
            <div class="small-8 medium-6 columns">
                <h2>Welcome to <strong>{{components.site.name}}</strong>
                    <br/> {{components.carousel.content.tag_line}}</h2>
                <br>

                <p>
                    {{components.carousel.content.perks_1}} &nbsp; | &nbsp;
                    {{components.carousel.content.perks_2}} &nbsp; | &nbsp;
                    {{components.carousel.content.perks_3}}
                </p>
            </div>
        </div>
    </div>

</template>

<script>
    import homepageMixin from '../mixin';

    export default {
        mixins: [homepageMixin],

        data: function () {
            return {
                components: ''
            }
        }
    }

</script>

Loading results in the following error message:

[Vue warn]: Error when rendering component carousel: ...

vue.js?3de6:2229 Uncaught TypeError: Cannot read property 'content' of undefined

In the past, this setup worked fine as the data was loaded post-facto and populated in the template afterwards. However, after attempting to integrate babel, the enforcement of use strict now seems to be causing issues. Upon inspecting the compiled JS files pre and post installation, I noticed that a particular line which used to be at the bottom is now being compiled at the top prior to my components.

var g;\r\n\r\n// This works in non-strict mode\r\ng = (function() { return this; })();

To resolve this, one potential solution would be to load the script first so that by the time the template is loaded, the necessary data is readily available. How can I go about achieving this?

Answer №1

If you were to call components.carousel, there would be no problem; however, you are attempting to access a nested property that is under an undefined value. This issue is unrelated to VueJS. Nevertheless, it is recommended to wrap anything that could potentially be undefined in a v-if statement. In your scenario, consider using v-if='components.carousel' on the top node element. This approach should resolve the issue smoothly.

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

The new data is not being fetched before *ngFor is updating

In the process of developing a "Meeting List" feature that allows users to create new meetings and join existing ones. My technology stack includes: FrontEnd: Angular API: Firebase Cloud Functions DB: Firebase realtime DB To display the list of meeting ...

Enhancing Luxon DateTime with extension type support

Referencing the issue at https://github.com/moment/luxon/issues/260, I am looking to extend the DateTime object as shown below: import { DateTime } from 'luxon'; function fromUnix(tsp?: number): DateTime { return DateTime.fromMillis(tsp * 1000 ...

Discover the exact location of an HTML element within an iframe

I am currently attempting to determine the position of an element that is within an iframe. I have written the following code for this purpose: // Custom function to calculate the position of an element on the page function getElementPosition(elem){ var ...

Creating a JavaScript function triggered by a click event that will redirect to

I'm attempting to create an onclick function that will redirect you to a new page when you click on a div element, much like the A + href attribute in HTML. Any suggestions on how to achieve this? Should I just add an A tag inside the div? I'm un ...

Display a div based on user selection using Ajax and Laravel

There are two div elements on the index page containing a datatable. By default, these two divs should be hidden. When an option is selected from the dropdown menu, the corresponding div should be displayed. The webpage is designed for searching within a ...

Comparing two Objects in JavaScript results in automatic updates for the second Object when changes are made to the first

Can someone please assist me with a hash map issue I'm encountering in my for loop? When resetting the second object, it unintentionally alters the Map values of the previous Key in the Hash Map. Any guidance on how to prevent this behavior would be g ...

Is the for loop in Node.js completed when making a MySQL call?

A certain function passes an array named res that contains user data in the following format: [ RowDataPacket { UserID: 26 }, RowDataPacker { UserID: 4 } ] The goal is to create a function that fetches each user's username based on their ID and stor ...

Retrieve an HTML element that is a select option with jQuery

I have a select input containing different options as shown below: <select id="myArea"> <option class="myClass_1" style="color:red;" value="1">Area 1</option> <option class="myClass_2" style="color:green;" value="2">Area 2& ...

What is the best way to display just one record that has the lowest score out of all the records?

I need help with displaying only 1 record from the DL list that has the lowest score, instead of showing all records. In the example on stackblitz, you can see that for the first record, the DL scores are: 54, 20, and updated. Instead of displaying all 3 ...

beforeunload event confirmation prompt

I am currently working with Laravel and Vue.js to create a multi-step wizard. Within this wizard, I have implemented the onbeforeunload event to prevent any unwanted actions by displaying a confirmation message. However, I am encountering an issue where th ...

How to access and retrieve selected checkbox values using jQuery

<form id="myform"> <input type='checkbox' name='foo[]' value='1'> <input type='checkbox' name='foo[]' checked='true' value='2' > <input type='checkbox' ...

Initiate a $digest cycle externally

How can I ensure that $digest triggers when calling methods from outside Angular in an application where code is loaded and eval'd at runtime? Considering that these methods may also be called from within Angular, would it be better to expose a separa ...

Achieving dynamic serving of static files using Rollup and integrating seamlessly with node-resolve

Currently, I am in the process of building a library using TSDX, which is a powerful CLI tool for package development based on Rollup. My project involves a collection of country flags SVGs that need to be imported and displayed dynamically when required. ...

Choosing a personalized component using document selector

Currently, I am working on an application using Stenciljs and have created a custom element like this: <custom-alert alertType="warning" alertId="warningMessage" hide>Be warned</custom-alert> The challenge arises when attem ...

The Sentinel of Vue-router Navigation

I am trying to create a router guard, but I am having trouble with the logic. The setAuthentication part works fine when it's equal to true, but the else part is giving me issues. I need the KrediForm page to only be accessible when setAuthentication ...

Using Three.js to apply multiple images onto a sphere and have individual control over each one

I have a 3D sphere that I am looking to map an array of images onto. I want to be able to control each image independently, allowing for fading in and out of each image. To better illustrate my goal, I will provide an example image of what I am trying to a ...

The function app.post in Express Node is not recognized

I decided to organize my routes by creating a new folder called 'routes' and moving all of them out of server.js. In this process, I created a file named 'apis.js' inside the routes folder. However, upon doing so, I encountered an error ...

Have Babel transpile configuration files into CommonJS format

I'm having trouble getting my Nuxt app to work with Jest for testing. I have a setupFilesAfterEnv property set with a setupTests.ts file that imports a translation file. The translations file uses ES6 import/export module syntax, but it seems like my ...

Error message stating that the function "data.map" is not recognized, resulting in a

const ShoppingList = ({ itemList }) => { let { loading, items } = itemList; console.log(items); return ( <div> {loading ? ( <p>Loading...</p> ) : ( <table> <thead> ...

Center the span in CSS by setting its position to absolute

I am trying to create a span element positioned as absolute inside a div. The div has top and left values set. When the user inputs text, the span expands with the given text towards the right to contain it. However, I would like it to grow symmetrically o ...