This project was bootstrapped with Create React App.
Graph example
d3 from https://d3js.org/ - lovely visual library
axios from https://www.npmjs.com/package/axios as data fetcher (however, after some minor issues decided to use standard fetch)
The program is simple. First, I fetched the data from open API, then mapped and sorted it. After that, I plotted the graph of CZK (Czech crown) to EUR (Euro).
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changing currency to compare
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changing the timeframe to compare
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changing graph type
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changing graph color