how to remove in javascript code example

Example 1: javascript remove property from object

var person = {"first_name": "Billy","last_name": "Johnson"};
delete person.last_name; //delete last_name property

Example 2: remove javascript

var elem = document.getElementById("myDiv");
elem.parentNode.removeChild(elem);

Example 3: remove in javascript

function arrayRemove(arr, value) 
{
  return arr.filter(function(ele){ 
    return ele != value;
  });
}
//var result = arrayRemove(array, 6);// result = [1, 2, 3, 4, 5, 7, 8, 9, 0]

Example 4: .remove javascript

<div id="div-01">Here is div-01</div>
<div id="div-02">Here is div-02</div>
<div id="div-03">Here is div-03</div>