w3resource
Debug JavaScript with firebug

Execute JavaScript on the fly with Firebug

You can use Firebug to write and execute a JavaScript in real time. This is a good way to test and make sure that the script is working properly before you deploy it in a production environment.

Open Firebug and write a code as shown. Press enter. Immediately you will see the output of the code.

execute-javascript-on-the-fly


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