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4 changes: 2 additions & 2 deletions hooks/04_Callback/Readme.md
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# 04 Callback + State

In this example we refactor the previous **03 State** example.
In this example we will refactor the previous **03 State** example.

We will update the name property only when the user clicks a _change_ button, and we will simplify the prop callback signature.

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## Prerequisites

Install [Node.js and npm](https://nodejs.org/en/) (v6.6.0) if they are not already installed on your computer.
Install [Node.js and npm](https://nodejs.org/en/) (v6.6.0 or higher) if they are not already installed on your computer.

> Verify that you are running at least node v6.x.x and npm 3.x.x by running `node -v` and `npm -v` in a terminal/console window. Older versions may produce errors.

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