//removing element by ID
var element = document.getElementById("myElementID");
element.parentNode.removeChild(element);//remove a dom element
var element = document.getElementById("someId");
element.parentNode.removeChild(element);
//remove element from array
var colors=["red","green","blue","yellow"];
var blue=colors.splice(2, 1);//first arg is array index to remove
//colors is now ["red","green","yellow"]
var colors = ["red","blue","car","green"];
var carIndex = colors.indexOf("car");//get "car" index
//remove car from the colors array
colors.splice(carIndex, 1); // colors = ["red","blue","green"]document.getElementById("my-element").remove();// delete an element from the dom
var elem = document.querySelector('#some-element');
elem.parentNode.removeChild(elem);
// keep element in dom
var elem = document.querySelector('#some-element');
elem.style.display = 'none';