user256: With the Cardano's Alonzo Hard fork coming, the Cardano testnet will be coming in. I assumed that there is a frontend library for interacting with the Cardano testnet, however I couldn't find anywhere. I wonder if there are libraries that are being developed?
Regards,
Ivan

user62: There isn't currently a Javascript library, but it looks like the Cardanoscan folks are building one for interfacing with the Cardano blockchain (link to article).
The current pioneer's testnet for writing smart contracts uses Plutus. You can read more about this here.

user28: The only JavaScript library there is right now, is the cardano-serialization-lib developer by Emurgo.
However, as already mentioned, there is a number of Catalyst proposals that you might want to vote for in the upcoming rounds:

Fund4: JavaScript SDK for Blockfrost API (pardon my shameless plug, we're the team behind Blockfrost.io API)
Fund4: Ouroboros Networking Lib in JS
Fund5: Cardano JS API


256: <p>With the Cardano's Alonzo Hard fork coming, the Cardano testnet will be coming in. I assumed that there is a frontend library for interacting with the Cardano testnet, however I couldn't find anywhere. I wonder if there are libraries that are being developed?</p>
<p>Regards,</p>
<p>Ivan</p>
 62: <p>There isn't currently a Javascript library, but it looks like the Cardanoscan folks are building one for interfacing with the Cardano blockchain (<a href="https://adapulse.io/building-a-ouroborus-networking-package-for-javascript-developers/" rel="nofollow noreferrer">link to article</a>).</p>
<p>The current pioneer's testnet for writing smart contracts uses Plutus. You can read more about this <a href="https://docs.cardano.org/projects/plutus/en/latest/" rel="nofollow noreferrer">here</a>.</p>
 28: <p>The only JavaScript library there is right now, is the <a href="https://github.com/Emurgo/cardano-serialization-lib" rel="nofollow noreferrer">cardano-serialization-lib</a> developer by Emurgo.</p>
<p>However, as already mentioned, there is a number of Catalyst proposals that you might want to vote for in the upcoming rounds:</p>
<ul>
<li>Fund4: <a href="https://cardano.ideascale.com/a/dtd/JavaScript-SDK-for-Blockfrost-API/341442-48088" rel="nofollow noreferrer">JavaScript SDK for Blockfrost API</a> (pardon my shameless plug, we're the team behind <a href="https://blockfrost.io/" rel="nofollow noreferrer">Blockfrost.io</a> API)</li>
<li>Fund4: <a href="https://cardano.ideascale.com/a/dtd/Ouroboros-Networking-Lib-in-JS/342248-48088" rel="nofollow noreferrer">Ouroboros Networking Lib in JS</a></li>
<li>Fund5: <a href="https://cardano.ideascale.com/a/dtd/Cardano-JS-API/350707-48088" rel="nofollow noreferrer">Cardano JS API</a></li>
</ul>
