Fundamental Javascript Concepts to help you get started with React
Cecilia Wahome

This is a very enlightening article. Thank you Cecilia. Also, spread operators can be used to add properties to objects, change object values or concat two objects into one object.

example would be,

const foo = {a:1, b:2};

const bar = {…foo, c:3};

I use this so often especially with redux reducers.

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