In
JavaScript, you can display any string using alert box. JavaScript alert is a
method of window object. But we can also it explicitly without reference to
window object. There are many other ways in JavaScript to display string like
console.log method.
JavaScript Program to Display Hello World using Alert Box
<!doctype html> <html> <head> <meta charset="utf-8"> <title>Hello World</title> </head> <body> <button onclick="print()">Click Me...</button> </body> <script> function print(){ alert("Hello World..."); } </script> </html>
Output:
When you click on this button, a pop up
box occurs that displaying "Hello World...".
JavaScript Program to Display Hello
World using console.log
console.log method is used to print
string on console window. If you use this method nothing will display on the
screen, but it will display on console window.
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Hello World</title>
</head>
<body>
<button onclick="print()">Click Me...</button>
</body>
<script>
function disp(){
console.log("Hello World...");
}
</script>
</html>
Output:
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