What is the best way to apply dynamic wrapping of a substring with a component in Vue.js?

My Objective

My goal is to take a user input string and render it with specific substrings wrapped in a component. Specifically, I am looking to identify dates within the string using a regex pattern and then wrap these dates in a Vuetify chip.

Progress So Far

https://i.sstatic.net/WMaWN.png

Above you can see a screenshot of my current progress. The textarea input is displayed below, with certain date substrings properly wrapped in Vuetify chips. This was achieved by replacing the matched substring with the necessary HTML code for the component and then rendering it using the v-html directive. Below is an example of the code used for this process.

<div style="line-height:40px;" v-html="messageOutput"></div>
let finalStr = ''
let str = 'Your a/c no. XXXXXXXXXX85 is credited on 15-11-17.'

let dateReg = /((?=\d{4})\d{4}|(?=[a-zA-Z]{3})[a-zA-Z]{3}|\d{2})((?=\/)\/|-)((?=[0-9]{2})[0-9]{2}|(?=[0-9]{1,2})[0-9]{1,2}|[a-zA-Z]{3})((?=\/)\/|-)((?=[0-9]{4})[0-9]{4}|(?=[0-9]{2})[0-9]{2}|[a-zA-Z]{3})/

const date = dateReg.exec(str)
finalStr = str.replace(date[0], `
 <div class="md-chip md-chip-clickable">
  <div class="md-chip-icon primary"><i class="material-icons">date_range</i></div>
   ${date[0]}
 </div>
`)

Existing Challenges

The issue at hand is that when using custom components instead of plain HTML, the desired output is not achieved. The styles are not applied as expected and the component does not interact with events properly.

Looking for a Solution

Answer №1

Issue

The challenge with custom components not functioning as anticipated arises when attempting to include them within a v-html directive. The problem lies in the fact that the v-html directive inserts content as raw HTML, which prevents data and events from being reactively bound when setting an element's innerHTML.

It's important to note that using v-html to construct template partials is not recommended in Vue, as it is not designed as a string-based templating engine. Instead, components are encouraged for UI reuse and composition.

– Reference: Vue guide on interpolating raw HTML

The v-html directive updates the element’s innerHTML. However, the inserted contents are treated as plain HTML and are not compiled as Vue templates. If attempts are made to compose templates using v-html, reconsider the approach by utilizing components instead.

– Reference: Vue API documentation on the v-html directive

Resolution

Components serve as the core units for UI reuse and composition. To address this issue, it is necessary to create a component capable of detecting specific substrings and enclosing them within a component. While Vue's components/templates and directives alone may not suffice for this task, a lower-level solution can be achieved through render functions.

A render function allows for processing a string input, tokenizing it, and generating a view with matched substrings wrapped in a component. Below is a basic implementation example:

// Code snippet here...
// CSS snippet here...
// HTML snippet here...

In essence, the SmartRenderer component accepts a string as a prop. Within the render function:

  1. The string is tokenized by splitting it based on whitespace characters.
  2. An array of elements is constructed by iterating through each token and checking if it matches a specified rule (e.g., searching for 'foo') to wrap it in a component or leaving it unchanged.
  3. The result is accumulated iteratively.
  4. The resulting array is passed to createElement to create a div element with the children.
// More code snippets here...

createElement requires an HTML tag name and component options as arguments, while the second argument handles child elements to render. Additional details on createElement can be found in the documentation.

While the provided solution addresses the immediate issue, some challenges remain unresolved, such as handling various whitespace characters and improving the dynamic wrapping logic for tokens. Implementing a more robust solution with defined rules could enhance the functionality further.

Further Exploration

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

Guidelines for showcasing a map on my website with the option for users to select a specific country

Is there a method to showcase a global map on my site and let the user select a country to receive relevant information? I am aware of embedding Google Maps, however, it includes unnecessary controls like zooming which I prefer not to inconvenience the us ...

Combining objects within an array based on shared key values

Is there a way to merge objects with the same date into one cohesive data set? I could use some guidance. const info = [ { date: '1 Day', green: 35 }, { date: '2 Day', green: 64 }, { date ...

Is there a way to stop mUI from displaying the dropdown menu once Chrome automatically fills in a user's address details?

I am currently developing a form for users to enter their address in order to collect a billing address for payment information. Our services are only available to customers within the United States, so we have implemented an autocomplete UI component with ...

The Kenburn zoom image effect fails to function

I want to implement a zoom effect on an image using the Ken Burns effect when it is clicked. However, the code I have written does not seem to be working as expected. Here is the code snippet: $(document).ready(function () { $('.kenburns').on( ...

Challenges arise with the height settings of ui-grid

Currently, I am facing an issue with using height: auto on an angularJS ui-grid. The problem arises from an inline style that specifies a fixed height on the div to which the ui-grid attribute is added. Additionally, the function getViewPortStyle() dynamic ...

Passing an array of integer arrays to a controller method in ASP MVC using Ajax

I am encountering an issue with my AJAX call when trying to post data entered by the user on the webpage to a controller method. Unfortunately, the data never reaches the controller and always results in an error. I suspect that the problem lies in the typ ...

The value of useEffect does not change even after it is defined in ReactJS

I am working on a component where I need to fetch data from an API after it has been rendered, and store the response in a useState value. However, when attempting to set the state using the useEffect callback after fetching the API, nothing seems to be w ...

What causes nodejs to exit prematurely without running all the code?

When running the code provided, it randomly prints "DONE" or not. Can you explain why this happens? How can I ensure that it always reaches the console.log("DONE"); line every time? const {Worker, isMainThread, parentPort} = require('node:worker_threa ...

Traversing a JavaScript class within a for loop

I am attempting to access the locations listed in json.responseJSON.Sites, starting with LHR on the first iteration and then NJE on the next one, and so forth. The notifications for each location are "LHR" and "NJE", respectively. Is it possible to achieve ...

Having trouble getting the on:dblclick event to trigger on a row within a list using S

I am currently using Sveltestrap and I am in need of a double click handler for a row: <ListGroupItem on:dblclick={handler(params)}> <Row> <Col><Icon name=........</Col> ... </Row> </ListGroupItem> Int ...

Update the appearance of an element in real-time using VUEJS

I am trying to use VueJS to dynamically change the position of a div. In the data function, I have a variable called x that I want to assign to the top property. However, the code I wrote doesn't seem to be working. Here is what it looks like: <tem ...

Updating state atoms in Recoil.js externally from components: A comprehensive guide for React users

Being new to Recoil.js, I have set up an atom and selector for the signed-in user in my app: const signedInUserAtom = atom<SignedInUser | null>({ key: 'signedInUserAtom', default: null }) export const signedInUserSelector = selecto ...

Guide to dividing a string and structuring it into an array

I need help breaking apart these strings: var str = '(john) the quick brown (emily) fox jumps over (steam) the lazy dog.' var str1 = '(john) the quick brown fox jumps over (steam) the lazy dog.' to create an array like this: joh ...

The routing is not functioning properly as anticipated

Here is a route definition that I am using: routes.MapRoute( "FormPreview", "Forhandsgranska/{FormId}/{action}/{id}", new { controller = "FormPreview", action = "Introduction", id = UrlParameter.Optional } ...

Enhance the HTML content using a JavaScript function

Here is the code that I have: <label>Brand</label></br> <select name="brand" id="brand" onChange="changecat(this.value);"> <option value="" selected>Select Brand</option> <option value="A">AMD</option&g ...

What measures can be taken to prohibit a user from accessing a client-side HTML file using express?

I am currently developing a task management application called "todolist." In my node.js code, I utilize express and grant it access to my directory named Client: var app = express(); app.use(express.static(__dirname + "/Client")); The contents of my Cl ...

React's Conditional Rendering

Let's imagine having these initial conditions: this.state = {plans: [], phase: 'daybreak'} along with a dynamic JSON object fetched from an API containing various schedules that may change periodically, for example: plans = {"daybreak": " ...

Angular - Detecting Scroll Events on Page Scrolling Only

I am currently working on implementing a "show more" feature and need to monitor the scroll event for this purpose. The code I am using is: window.addEventListener('scroll', this.scroll, true); Here is the scroll function: scroll = (event: any) ...

What is the best way to search the NPM REST API in order to find the most accurate results?

I'm trying to find an effective way to query the npm REST API in order to get relevant search results. I aim to seamlessly integrate this search feature into my application. For instance, when I search for "bootstrap" on npm, I receive various result ...

User interface for modifying options in a dropdown menu

I seem to be facing a terminology dilemma. Currently, I have a database with values stored in a table that need to be displayed in a select drop-down on a web interface. The technology stack includes SQL Server, ColdFusion, and JavaScript, mainly jQuery. ...