How to use the blakejs.blake2s function in blakejs
To help you get started, we’ve selected a few blakejs examples, based on popular ways it is used in public projects.
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Cryptonomic / ConseilJS / src / chain / tezos / contracts / TCFBakerRegistryHelper.ts View on Github 
export async function verifyDestination(server: string, address: string): Promise {
const contract = await TezosNodeReader.getAccountForBlock(server, 'head', address);
if (!!!contract.script) { throw new Error(`No code found at ${address}`); }
const k = Buffer.from(blakejs.blake2s(contract['script'].toString(), null, 16)).toString('hex');
if (k !== '1527ddf08bdf582dce0b28c051044897') { throw new Error(`Contract at ${address} does not match the expected code hash`); }
return true;
}blakejs
Pure Javascript implementation of the BLAKE2b and BLAKE2s hash functions
