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Block Number Check

BeginnerSystemArbSys15 XP

Retrieve the current Arbitrum block number

In this challenge, you'll learn how to access Arbitrum's current block number using the ArbSys precompile.

Create a function called getCurrentBlockNumber that:

Connects to the ArbSys precompile on Arbitrum Sepolia

Calls the appropriate method to get the current Arbitrum block number

Returns the block number

JavaScript

        // This should return the current Arbitrum block number
        getCurrentBlockNumber()

Use the ethers.js library which is already imported for you

The ArbSys precompile is located at: 0x0000000000000000000000000000000000000064

Unlike Ethereum's eth_blockNumber JSON-RPC call, Arbitrum has its own block number function

Complete all the steps above to solve the challenge!

block-number-check.ts

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Ready to test your solution?

Complete the exercise and submit to check your results.