get element by class name definition javascript code example

Example 1: javascript get element by class

var elementsArray = document.getElementsByClassName("someclassname");

Example 2: how to get element by class name javascript

document.getElementsByClassName("legend").style.display="none";

Example 3: get element by class

var x = document.getElementsByClassName("example");
var i;
for (i = 0; i < x.length; i++) {
  x[i].style.backgroundColor = "red";
}