Global Objects
Last updated
Last updated
along with msg.sender there are other msg special global variables that are useful:
msg.data — The complete calldata which is a non-modifiable, non-persistent area where function arguments are stored and behave mostly like memory
msg.gas — Returns the available gas remaining for a current transaction (you can learn more about gas in Ethereum here)
msg.sig — The first four bytes of the calldata for a function that specifies the function to be called (i.e., function selector)
msg.value — The amount of wei sent with a message to a contract (wei is a denomination of ETH)
