> For the complete documentation index, see [llms.txt](https://docs.ternoa.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ternoa.network/build-1/javascript/ternoa-js-library-utilities.md).

# Ternoa-js library utilities

- [Installation & Initialization](https://docs.ternoa.network/build-1/javascript/ternoa-js-library-utilities/installation-and-initialization.md)
- [Batching transactions](https://docs.ternoa.network/build-1/javascript/ternoa-js-library-utilities/batching-transactions.md)
- [Sign a transaction with Polkadot{.js} extension in a browser environment](https://docs.ternoa.network/build-1/javascript/ternoa-js-library-utilities/sign-a-transaction-with-polkadot-.js-extension-in-a-browser-environment.md)
- [Retrieve chain events](https://docs.ternoa.network/build-1/javascript/ternoa-js-library-utilities/retrieve-chain-events.md)
- [Customs extrinsics & queries](https://docs.ternoa.network/build-1/javascript/ternoa-js-library-utilities/customs-extrinsics-and-queries.md)
- [On-chain data at a specific blockhash](https://docs.ternoa.network/build-1/javascript/ternoa-js-library-utilities/on-chain-data-at-a-specific-blockhash.md)