Solidity Global Variables

block methods:

• block.coinbase

• block.difficulty

• block.gaslimit

• block.number

• block.timestamp

• block.blockhash(uint blockNumber)

msg methods:

• msg.data

• msg.gas

• msg.sender: immediate account that invoked the function

• msg.sig

• msg.value

tx methods:

• tx.gasprice

• tx.origin: external account that initiated the tx

contract methods:

• contract.this

• contract.selfdestruct

• contract.suicide

address methods:

• address.balance

• address.transfer(): uint wei

• address.send(): uint wei

• address.call(): bytes4(sha3("<FUNCTION>(params)"))

• address.callcode()

• address.delegatecall()

error handling:

• require(<CONDITION>)

• assert(<CONDITION>)

• revert()

Others:

• now

• sha3 = keccak256()

• sha2 = sha256()