Output in JavaScript programming

JavaScript output ways

1. Using document.write()
2. Using window.alert()
3. Using console.log()
4. Using innerHTML

Using document.write()

It write content on web page.

Mainly it is used for testing.

Program

<!DOCTYPE html>
<html>
<body>

<h1>output with document.write()</h1>
<script>
document.write("<h2>This is javascript output<h2>");
</script>

</body>
</html>

Try in editor

Using window.alert()

It display output in popup.

Program

<!DOCTYPE html>
<html>
<body>

<h1>display output in popup</h1>
<script>
window.alert("This is javascript output");
</script>

</body>
</html>

Try in editor

Using console.log()

Mainly it is used for debugging.

Program

<!DOCTYPE html>
<html>
<body>

<h1>display output in console</h1>
<script>
console.log("This is javascript output");
</script>

</body>
</html>

Try in editor

Using innerHTML

Program

<!DOCTYPE html>
<html>
<body>

<p id="para"></p>
<script>
document.getElementById("para").innerHTML = "Hello World";
</script>
</body>
</html>

Try in editor

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