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Capture the shift key when pressed

I am writing a program that requires me to detect when a shift key is pressed and do something. Something like window.addEventListener('keydown', event => console.log(… (tuilleadh eolais)

I am writing a program that requires me to detect when a shift key is pressed and do something. Something like

window.addEventListener('keydown', event => console.log(event), false); // expect to see an event logged to console when pushing the "shift" key

This works great on all browsers except Firefox. "alt" and "fn" keys are also not able to be detected on Firefox. Is there some sort of advanced security settings I can disable to let me capture these things?

Thanks in advance.

Asked by codyb29 6 lá ó shin

Last reply by codyb29 6 lá ó shin