JAVASCRIPT

javascript get element by class name

let elementsArray = document.getElementsByClassName("className");
// OR
let element = document.querySelector(".className");

javascript get element by class

var elements = document.querySelector(".class");

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";
}

Getting Elements by Class Name

let blueThings = document.getElementsByClassName('blue');

console.log(blueThings);                        // The HTMLCollection
console.log(blueThings[0]);                     // The first element with class="blue" in the document
console.log(blueThings.length);                 // The number of elements with class="blue" found
console.log(blueThings.item(2));                // The element at index 2 in the collection
console.log(blueThings.namedItem('specific'));  // The element with both class="blue" and id="specific"

javascript get element by class

const whiteBoxes = document.getElementsByClassName("box-white")

how to get element by class name javascript

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

get element by class name

var y = document.getElementsByClassName('foo');
var aNode = y[0];