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JavaScript function and return

The result page in jsfiddle renders html.

The Javascript function 'console.log()' outputs information to the browser console, not to the Document Object Model (dom).

You can view javascript console output in any browser console, I like to use Chrome Web Tools, or you can build your own HTML to see the results

Rest assured, the function you wrote works, it just doesn't represent itself in the results part of jsfiddle.

Edit: formatting

Edit 2: If you just want the confidence your Javascript function is working, without other technical information, change console.log(number) to alert(number)

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