js get element by class name code example
Example 1: javascript get element by class
var elementsArray = document.getElementsByClassName("someclassname");
Example 2: javascript get element by class
var elements = document.querySelector(".class");
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";
}
Example 4: get element by class name
var y = document.getElementsByClassName('foo');
var aNode = y[0];