Javascript Output

JavaScript does not have any built-in print or display functions.

JavaScript Display Possibilities

JavaScript can "display" data in different ways:

• Writing into an alert box, using window.alert().
• Writing into the HTML output using document.write().
• Writing into an HTML element, using innerHTML.
• Writing into the browser console, using console.log().

Using window.alert()

You can use an alert box to display data:.

Using document.write()

For testing purposes, it is convenient to use document.write():

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:

Using console.log()

In your browser, you can use the console.log() method to display data.
Activate the browser console with F12, and select "Console" in the menu.