JavaScript Adding an ID attribute to another created Element

javascript html function dom setattribute

234,595

Solution 1

Since id is an attribute don't create an id element, just do this:

myPara.setAttribute("id", "id_you_like");

Solution 2

You set an element's id by setting its corresponding property:

myPara.id = ID;

Solution 3

You can use dot notation.

myPara.id = 'anyNameYouLike';

234,595

Author by

king_sw4

Updated on May 13, 2021

Comments

king_sw4 about 3 years

I have some code here that will do the following. The code creates an element "p" then I append it to a "div" in the HTML. I would like that "p" I just created have an unique identifier (ID) and set the name of the ID. So later on when the user wants to delete the last created element it will be able to get the ID so it can removeChild. Here is the code:

JavaScript:

  var $ = function (id)
  {
      return document.getElementById(id);
  }

  function ShowResponse ()
  {
  var myResponse = $("myresponse").value;

  var myPara = document.createElement("p");
  var myDiv = $("mydiv");
  myDiv.appendChild(myPara);

  var myID = document.createElement("id");
  myID.setAttribute("value", ID)

  var myText = document.createTextNode(myResponse);
  myPara.appendChild(myText);
  }

  function RemoveResponse ()
  {

  }

  window.onload = function ()
  {
      $("showresponse").onclick = ShowResponse;
      $("removeresponse").onclick = RemoveResponse;
  }

HTML:

  <body>
  <div id="mydiv">
  <h1>Practice</h1>

  <p>Hi There</p>
  <p>How are you?</p>

  <p>
<input type="text" id="myresponse">
<br><input type="button" id="showresponse" value="Show Response">
<input type="button" id="removeresponse" value="Remove Response">
  </p>

  <hr>
 </div>

 </body>

CodeConnoisseur about 3 years

This replaces the existing id if there is one. How do you append an id to an existing id
BobRodes about 2 years

@PA-GW You can't. An HTML element can only have one id, since it's used to uniquely identify the element.