Question:
b" I saw some code that seems to use an operator I don't recognize, in the form of two exclamation points, like so: !!. Can someone please tell me what this operator does?The context in which I saw this was,this.vertical = vertical !== undefined ? !!vertical : this.vertical; "
Solution : https://worcraft-algeria-dz.com/howto/37/What-is-the-!!-(not-not)-operator-in-JavaScript? | Source : https://worcraft-algeria-dz.com/