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Tag: javascript

UseEffect won’t use updated state

I have a react function which is supposed to be my header. This header shall change its background color after reaching a button on scroll. To do so I use a scroll event listener and track its position in relation to the button. This works fine for setTransparent(false), but not for setTransparent(true): Logg…

How to override function/value in a class thats has been extended

A little confused on how to over ride a return value in a function. Example. and I have another class that extends the above class. What I am aiming to do is if getFirstName is called from Customer, then itll return a value. If however getFirstName is called from Client, I want it to return null. How would I …