js change attribute value code example

Example 1: javascript update attribute

var element = document.getElementById("elemId");
element.setAttribute("attributeName", "value");

Example 2: set attribute in javascript

//Fetch id from html
var a = document.getElementById("id");

//variable.setAttribute("Attributes","Properties:Values")
a.setAttribute("style", "visibility:hidden;");

Example 3: setAttribute()

element.setAttribute(name, value);
element.setAttribute("style", "background-color: red;");

Example 4: set attribute javascript

Element.setAttribute(name, value);