Toggle navigation
Genres
Frontend (2)
JavaScript (6)
Database (2)
Linux Server (3)
Web Apps (4)
Misc (4)
Search
List
New Tutorials
Last Modified Tutorials
</>
Code examples
code
smiko
javascript
advanced
variables
22var_undefined.js
22var_undefined.js
/** * undefined value */ var name; //not yet defined variable var type=typeof name; //browser - string: //nodeJS - undefined: undefined console.log(type +': '+ name);
Reload page
Preview
W3C validation
Edit Code
JS Console