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JavaScript React Basics (retired) Designing Data Flow Communicating Events

Posted by Thomas Gauperaa
Thomas Gauperaa
3,584 Points

Where does the value of delta come from?

I'm wondering where the value of delta is coming from? Is it propagated from Counter's onClick call to {props.onChange(-1); all the way up to Application's onScoreChange function?

ester gabetta
ester gabetta
8,948 Points

I would like to know me too........ Out of the blue.....

1 Answer

Richie Black
Richie Black
27,272 Points
Richie Black
Richie Black
27,272 Points

Yes you are correct. It comes from the -1 and +1 that are being passed in the Counter component when the buttons are clicked.

<... onClick = {function() {props.onChange(VALUE HERE); }}