how to change display classes on click of select options-CodePudding

<div >
  <label">Which Crypto would you like to Deposit with?</label>
  <div >
    <select  aria-label="Default select example">
      <option selected>Choose Crypto Option:</option>
      <option value="1">Bitcoin</option>
      <option value="2">Ethereum</option>
      <option value="3">USDT</option>
    </select>
  </div>
</div>

<div >
  <label>Deposit Address:</label>
  <div >
    <p  id="p1"> ygwbfewilskfhnewisfklnewiofjfhjky </p>
    <p  id="p2"> ygwbfewilskfhnewisfklnewiofjfhrrt </p>
    <p  id="p3"> ygwbfewilskfhnewisfklnewiofewfygi </p>                                
    <button  onclick="copyToClipboard('#p1')">
      Copy
      <i ></i>
    </button>
  </div>
</div>

.add-text2, .add-text3{
   display: none;
}

EXPLANATION:

I want the p.add-text(1,2 and 3) to toggle display from none to block according to which option the user clicks such that if <option value="1">Bitcoin</option> is clicked then this <p id="p1">ygwbfewilskfhnewisfklnewiofjfhjky</p> will be display: block and so on.

In essence, option values= "1,2,3" should only display p.add-text1,2,3 respectively.

Javascript only answers please!!!

CodePudding user response：

you need to use onchange event with javascript, something like this:

function change(selected) {
  document.querySelector('p.add-text'   selected.value).display = 'block'
}

and in html add to select onchange="change(this)" or add eventlistener with js

CodePudding user response：

This will surely help you :)

let value = 0;
let selectBtn = document.querySelector('select');
let p1 = document.querySelector('#p1');
let p2 = document.querySelector('#p2');
let p3 = document.querySelector('#p3');
selectBtn.addEventListener('change', () => {
  if (selectBtn.value == 1) {

    p1.classList.remove('add-text1');
    p2.classList.add('add-text2');
    p3.classList.add('add-text3');
  } else if (selectBtn.value == 2) {
    p1.classList.add('add-text1');
    p2.classList.remove('add-text2');
    p3.classList.add('add-text3');
  } else if ( selectBtn.value == 3 ) {
    p1.classList.add('add-text1');
    p2.classList.add('add-text2');
    p3.classList.remove('add-text3');
  }
})

.add-text1, .add-text2, .add-text3{
              display: none;
       }

  <div >
                          <label">Which Crypto would you like to Deposit with?</label>
                          <div >
                            <select  aria-label="Default select example">
                              <option selected>Choose Crypto Option:</option>
                              <option value="1">Bitcoin</option>
                              <option value="2">Ethereum</option>
                              <option value="3">USDT</option>
                            </select>
                          </div>
                        </div>

                        <div >
                          <label>Deposit Address:</label>
                          <div >
                            <p  id="p1">ygwbfewilskfhnewisfklnewiofjfhjky</p>
                            <p  id="p2">ygwbfewilskfhnewisfklnewiofjfhrrt</p>
                            <p  id="p3">ygwbfewilskfhnewisfklnewiofewfygi</p>                                
                            <button  onclick="copyToClipboard('#p1')">Copy<i ></i></button>
                          </div>
                        </div>

CodePudding user response：

This way...

const
  mySelect = document.querySelector('select[name="mySelect"]')
, p1_p2_p3 = document.querySelectorAll('#p1,#p2,#p3')
  ;
  
set_p1_p2_p3_on_mySelect()                    // on init page

mySelect.onchange = set_p1_p2_p3_on_mySelect  // for every change
  
function set_p1_p2_p3_on_mySelect()
  {
  let sel_id = 'p'   mySelect.value
  p1_p2_p3.forEach( p => p.classList.toggle('noDisplay', p.id !== sel_id ))
  }

.noDisplay { display: none; }

<select name="mySelect" >
  <option selected>Choose Crypto Option:</option>
  <option value="1">Bitcoin</option>
  <option value="2">Ethereum</option>
  <option value="3">USDT</option>
</select> 


 
<div>
  <p id="p1"> ygwbfewilskfhnewisfklnewiofjfhjky Bitcoin</p>
  <p id="p2"> ygwbfewilskfhnewisfklnewiofjfhrrt Ethereum </p>
  <p id="p3"> ygwbfewilskfhnewisfklnewiofewfygi USDT </p>                                
</div>