Update and replace the matching class in a JavaScript variable before appending it to dynamically generated content

I am attempting to substitute a matching class from a JavaScript variable before dynamically appending generated content. The goal is to identify one ID out of all the IDs in this variable and replace the 'hideeee' class with it. While I know this can be achieved easily using:

document.getElementById("testid").classList.remove('hideeee');

This method requires the specific ID to be available in the DOM, however, we are aiming to insert this data and display only the row that matches the clicked ID.

When these buttons are clicked, they send the ID of the clicked button which we capture using event.target.id. In the content variable, an extra 'y' has been appended to differentiate these IDs from the original ones. By default, the .hideeee class has a style of display:none, so we want to remove this class when the ID matches the showthisclass variable before appending it in the last line.

function showpdfaq1() {
    console.log(event.target.id);
    var showthisclass = event.target.id+'y';

    let heading = `...`; // Heading content goes here

    let content = `...`; // Content section goes here
                    
    var finalcontkke =  document.getElementById(showthisclass).classList.remove(hideeee);

    document.getElementById("appnewchat5").innerHTML = gethtml(heading, content);
}

Answer №1

However, in order to achieve this, the specific HTML ID must be present in the Document Object Model (DOM).

One approach is to first insert it into the DOM and then manipulate the classes within the DOM using DOM methods.

If your JavaScript code runs without any interruptions, the browser will not update the display immediately. This allows you to insert the content, modify the classes, and then have the browser reflect the changes once both operations are completed.

Another option could involve utilizing a DOM Parser initially (https://developer.mozilla.org/en-US/docs/Web/API/DOMParser) - although this might not be essential in this particular scenario.

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