how to call on the input in this scenario?

Question

I would like to give a class to each input in this scenario but I don't know how to.

JS:

  document.getElementsByClassName("parent")[0].addEventListener("click",function(){ document.getElementsByClassName("maco")[0].innerHTML="<form><wrap>Name: <input></wrap><wrap>Date Range from <input> to <input></wrap><wrap>Reason:<input></wrap><wrap>Name of Parent:<input></wrap><wrap><button>Enter<button></wrap></form>";
     document.getElementsByClassName("parent")[0].getElementsByTagName("form")[0].classList.add("pl");
     document.getElementsByClassName("parent")[0].getElementsByTagName("form")[0].getElementsByTagName("input")[0].classList.add("first");
     document.getElementsByClassName("parent")[0].getElementsByTagName("form")[0].getElementsByTagName("input")[1].classList.add("second");
     document.getElementsByClassName("parent")[0].getElementsByTagName("form")[0].getElementsByTagName("input")[2].classList.add("third");
     document.getElementsByClassName("parent")[0].getElementsByTagName("form")[0].getElementsByTagName("input")[3].classList.add("fourth");
     document.getElementsByClassName("parent")[0].getElementsByTagName("form")[0].getElementsByTagName("input")[4].classList.add("fifth"); });

i did the above but the browser kept saying Uncaught TypeError: Cannot read property 'getElementsByTagName' of undefined

Is there a way to give each input in the quote in innerHTML="..." a class?

Answer 1

Since you didn't post your HTML structure it's hard to be sure this will work, but assuimg your tree is like this:

<div class="parent">
   <form>
      <input>
      <input>
      <input>
   </form>
</div>

Here's how I would do this.

const numericalWords = [
  "first",
  "second",
  "third"
]


document.querySelectorAll('.parent form input').forEach((input, i) => {
  input.classList.add(numericalWords[i])
 })

.first {
    background: yellow;
 }
 
 .second {
    background: blue;
 }
 
.third {
    background: green;
 }

<div class="parent">
<form>
  <input>
  <input>
  <input>
</form>
</div>