screen output and keyboard input in js

Screen output and keyboard
input in JS
Prof. Neeraj Bhargava
Kapil Chauhan
Department of Computer Science
School of Engineering & Systems Sciences
MDS University, Ajmer

JavaScript Display Possibilities
JavaScript can "display" data in different ways:
 Writing into an HTML element, using innerHTML.
 Writing into the HTML output using document.write().
 Writing into an alert box, using window.alert().
 Writing into the browser console, using console.log().

Using innerHTML
 To access an HTML element, JavaScript can use
the document.getElementById(id) method.
 The id attribute defines the HTML element.
The innerHTML property defines the HTML content:

Cont..
 <p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = 5 + 6;
</script>

Using document.write()
 For testing purposes, it is convenient to
use document.write():
 <script>
document.write(5 + 6);
 </script>

Using window.alert()
 We can use an alert box to display data:
 <html>
<body>
<h1>My First Web Page</h1>
<p>My first paragraph.</p>
<script>
window.alert(5 + 6);
</script>
</body>
</html>

Using console.log()
 For debugging purposes, you can call the console.log() method in the browser
to display data.
 <html>
<body>
<script>
console.log(5 + 6);
</script>
</body>
</html>

Assignment
 Explain JavaScript Display Possibilities with each
suitable example.

screen output and keyboard input in js

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screen output and keyboard input in js