- Javascript was made by Brendan Eich in 1995.
- Javascript old name is livescript. at this time latest name is javascript.
- 98.0% website using javascript.
- The first original JavaScript main revision is invented in ES5 (2009).and second main revision ES6(2015).and every year additions (2016,2017,2018,2019,2020).
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style type="text/css">
#box{
width: 300px;
height: 150px;
background-color: aqua;
color: black;
}
</style>
</head>
<body>
<div id="box">my name is sachin</div>
<button onclick="message()">click me</button>
<script type="text/javascript">
function message(){
alert('welcome to my website and you are the boss');
}
</script>
</body>
</html>