id

id(text): string

Defined in: utils/id.ts:24

Compute the keccak256 hash of a UTF-8 string. Commonly used to compute Solidity function selectors and event topic hashes.

Similar to “id” in ethers.js

Parameters

text

string

the UTF-8 string to hash

Returns

string

the keccak256 hash as a hex string

Examples

id('Transfer(address,address,uint256)')
// '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef'

// Get a function selector (first 4 bytes)
id('balanceOf(address)').slice(0, 10)
// '0x70a08231'