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Update README.md #1

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May 24, 2021
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Update README.md #1

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4 changes: 2 additions & 2 deletions README.md
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Expand Up @@ -10,9 +10,9 @@ I opted to use the CDN prebuilt distribution and not the `npm` package since tha
git clone https://github.com/thheller/reagent-pdfjs.git
cd reagent-pdfjs
npm install
npx shadow-cljs watch app
npx shadow-cljs watch demo
```

Wait for "Build completed." and open `http://localhost:8400` in your Browser. You should see a "Hello World" pdf displayed.

This example shows how to use React `useRef` in combination with `useEffect` to interop with foreign DOM libraries that don't use the React/reagent rendering model. It applies to many other libraries (eg. d3) in the same way. Create a DOM node, add a ref and use that via within the `useEffect` callback. Sometimes it may be necessary to "clean up" after yourself in that hook. Couldn't find anything about that in the pdf.js docs, so I only added a log where you'd do it.
This example shows how to use React `useRef` in combination with `useEffect` to interop with foreign DOM libraries that don't use the React/reagent rendering model. It applies to many other libraries (eg. d3) in the same way. Create a DOM node, add a ref and use that via within the `useEffect` callback. Sometimes it may be necessary to "clean up" after yourself in that hook. Couldn't find anything about that in the pdf.js docs, so I only added a log where you'd do it.