How to check if 3 keys are pressed simultaniously?

I tried using 'this.input.keyboard.addKey(‘A,B,C’) but it checks them individually, and not if they are pressed simultaneously.

You would use addKeys('A,B,C') and then check isDown of each one.

Do I have to do that in the ‘update’ function or can I use:

this.mykeys.on(‘down’,…) in the 'create function?

In update().

if (this.mykeys.A.isDown && this.mykeys.B.isDown) {/*…*/}