Web3 integration · medium

31. Formatting a signed transaction hash

Prepare a tx hash for display after signing.

Write `displayTxHash(hash)` ensuring it has a `0x` prefix (add if missing) and is lowercase.

Required in your answer: toLowerCasestartsWith

Transpiled, then run in a sandbox

function displayTxHash(hash) {
  // TODO
}

Output appears here.