javascript get elements by class name multiple code example
Example 1: javascript get element by multiple class
var list = document.getElementsByClassName("class1 class2");
var list = document.querySelectorAll(".class1.class2");
Example 2: javascript get element by multiple class names
document.getElementsByClassName('class1 class2')
Example 3: getelementbyclassname get multiple class
document.querySelectorAll('.a,.b')