Answers for "document.get element by class"

javascript get element by class

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

getelementbyclass

var selector = document.getElementsByClassName('class-name');

get element by class

var elements = document.getElementsByClassName(names); // or:
var elements = rootElement.getElementsByClassName(names);

get element by class

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

how to get element by class name javascript

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

get elment by id within get element byclassname

var targetDiv = document.getElementById("foo").getElementsByClassName("bar")[0];
targetDiv.textContent = "Goodbye world!";