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I have this code.

document.querySelectorAll('.button-collapse').forEach(button => {
  button.addEventListener("click", () => {
    const collapseBox = button.nextElementSibling;
    
    button.classList.toggle('active-btn');
    collapseBox.classList.toggle('active');
  });
});

document.querySelectorAll('.button-collapse').forEach(button => {
  button.addEventListener("click", () => {
    const collapseBox = button.nextElementSibling;
    
    button.classList.toggle('active-btn');
    collapseBox.classList.toggle('active');
  });
});

Basically a collapsible box. I wanted to make it so, whenever a different one gets opened, collapses the last one, but haven't been able to wrap my head around it. Tried some if statements, but can't quite find the logic. Is there a way to make that? If anyone is curious, it's right here: https://cozynova.online/windcutter/#New-Player

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13 Replies

croganm•3y ago

So when you open one box, you want to close all the other boxes?

MyndiOP•3y ago

Yeah, to maintain one opened at the time, essentially.

croganm•3y ago

Well the first thing I would do is make sure none of the elements have the active class on them. That means removing it from the box that is active. Then, after that, I would do what you're doing which is adding the active class to the one that's clicked

MyndiOP•3y ago

But that's exactly what is happening right confusedDog

croganm•3y ago

You're only toggling the one that is clicked. You're not toggling the ones that are already active

MyndiOP•3y ago

So you mean something like, "if a sibling has active statement, remove it"? I mean, tried to do that, but couldn't wrap my head around the logic behind it. That's why I made the post here. Or perhaps, couldn't make it work.

croganm•3y ago

Just query select all active elements and remove the active class Then keep what you're currently doing

MyndiOP•3y ago

I will give it a try in the morning, mayhaps I just overcomplicated things.

croganm•3y ago

Haha sleep usually solves all coding problems. I promise, don't overcomplicate it. Just select all buttons and boxes with active class, loop over them and remove the class. Then, take the button and box you just clicked and add the class. I would provide the code but you'll learn it better once you do it, I promise 😂 Just breakdown the problem one by one. Do it in order and you'll get the solution

MyndiOP•3y ago

const activeBoxes = document.querySelectorAll('.active').forEach(button => {
  button.addEventListener("click", () => {

    if(activeBoxes.classList === 'active'){
      activeBoxes.classList.remove('active');
    }
  });
});

document.querySelectorAll('.button-collapse').forEach(button => {
  button.addEventListener("click", (e) => {
    const collapseBox = button.nextElementSibling;
    
    button.classList.toggle('active-btn');
    collapseBox.classList.toggle('active');
  });
});

const activeBoxes = document.querySelectorAll('.active').forEach(button => {
  button.addEventListener("click", () => {

    if(activeBoxes.classList === 'active'){
      activeBoxes.classList.remove('active');
    }
  });
});

document.querySelectorAll('.button-collapse').forEach(button => {
  button.addEventListener("click", (e) => {
    const collapseBox = button.nextElementSibling;
    
    button.classList.toggle('active-btn');
    collapseBox.classList.toggle('active');
  });
});

I thought I had it here, but ... no 😔 Then I thought of document.activeElement but couldn't quite wrap the logic around it. This is working for me now, but I just gave up trying to remove the active state from the button. How can I link them together?

document.querySelectorAll(".button-collapse").forEach((button) => {
  button.addEventListener("click", (e) => {
    const collapseBox = button.nextElementSibling;

    var i;
    const array = document.querySelectorAll(".active");
    for (i = 0; i < array.length; i++) {
      if (collapseBox.nextElementSibling != array[i])
        array[i].classList.toggle("active");
    }

    button.classList.toggle("active-btn");
    collapseBox.classList.toggle("active");
  });
});

document.querySelectorAll(".button-collapse").forEach((button) => {
  button.addEventListener("click", (e) => {
    const collapseBox = button.nextElementSibling;

    var i;
    const array = document.querySelectorAll(".active");
    for (i = 0; i < array.length; i++) {
      if (collapseBox.nextElementSibling != array[i])
        array[i].classList.toggle("active");
    }

    button.classList.toggle("active-btn");
    collapseBox.classList.toggle("active");
  });
});

croganm•3y ago

All you want to do is

document.querySelectorAll('.active').forEach(el => el.classList.remove('active')

document.querySelectorAll('.active').forEach(el => el.classList.remove('active')

That removes all the active classes Make that the very first thing after the button click Just select all active elements, loop over them, and remove it ^ You may want to do something similar for the button as well

document.querySelectorAll('.active-btn').forEach(el => el.classList.remove('active-btn')

document.querySelectorAll('.active-btn').forEach(el => el.classList.remove('active-btn')

MyndiOP•3y ago

I guess that's just simpler. Iterating over an element didn't cross my mind. Thank you for the function.

croganm•3y ago

Haha no worries, sometimes we need to go back to the basics

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