Helper function that will sha3 any value using keccak256
Usage
tronWeb.sha3()
Parameters
1.String-The string that needs to be hashed using Keccak-256 SHA3 algorithm.
2.Object-Optional setting. If you want to parse a hex string in hex format. Need to set encoding to hex. Because 0x is ignored by default in JS.
Returns
String-The result hashed using the Keccak-256 SHA3 algorithm.
Example
var hash = tronWeb.sha3("some string to be hashed");
console.log(hash)
>0xc4b9bbe7eb8797cf2818085dbcd6ea6662b3261c28810c318e079c8d0c691da6
var hashOfHash = tronWeb.sha3(hash,{encoding:'hex'})
console.log(hashOfHash)
>0xc4b9bbe7eb8797cf2818085dbcd6ea6662b3261c28810c318e079c8d0c691da6