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Tolerim
a month ago

How do I resolve the issue of x-text not updating when variables are changed?

Recently, I attempted to use Alpine.js in my code, but I found it to be overly complex or maybe misunderstood it.

Here's the code I wrote:

<div x-data="wordcount()" class="wordcount-container">
<p x-text="wc"> </p>
</div>
<textarea id="writing" @keyup="wordcount().updateWordCount()" ></textarea>


    let wordcount_writing = 0;
    function wordcount(){
        return {
            wc: wordcount_writing,
            updateWordCount(){
                this.wc = document.getElementById("writing").value.length;
                wordcount_writing = this.wc;
            }
        }
    }
Testing by console logging the 'wordcount_writing' variable while typing in the textarea proves successful, but 'x-text' does not display the word count.

Answers(2)
avatar
Vogi
a month ago
Verified Answer
It seems that the issue you are facing is not uncommon. One possible solution is to use a control variable in x-data and update it using a new value every time you want to force a refresh. Another solution is to use the x-bind directive instead of x-text. Here's an example of how you can use x-bind: 
<div x-data="wordcount()" class="wordcount-container">
<p x-bind:text="wc"> </p>
</div>
<textarea id="writing" @keyup="wordcount().updateWordCount()" ></textarea>


    let wordcount_writing = 0;
    function wordcount(){
        return {
            wc: wordcount_writing,
            updateWordCount(){
                this.wc = document.getElementById("writing").value.length;
                wordcount_writing = this.wc;
            }
        }
    }
I hope this helps! Let me know if you have any other questions.

Sources

Alpine data x-text/x-html not updating with .find() #932 - GithubStart Here — Alpine.jsalpine.js - x-text not working when variables updated - Stack Overflowx-text within x-for not triggered after x-data changes.. #897 - GithubInput element with x-model does not update when data is updated
avatar
Tolerim
a month ago
It looks like you're using Alpine.js to bind the value of wc in your HTML code to the wordcount_writing variable in your JavaScript code. However, you're having trouble updating the value of wc in real-time as you type in the textarea. To fix this issue, you can use the @input directive instead of @keyup to bind the updateWordCount method to the textarea element. This will update the value of wc in real-time as you type. Here is the updated code: 
<div x-data="wordcount()" class="wordcount-container">
  <p x-text="wc"></p>
</div>
<textarea id="writing" @input="updateWordCount()" ></textarea>
let wordcount_writing = 0;

function wordcount() {
  return {
    wc: wordcount_writing,
    updateWordCount() {
      this.wc = document.getElementById("writing").value.length;
      wordcount_writing = this.wc;
    },
  };
}
With this code, you should now see the value of wc updating in real-time as you type in the textarea.
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