In the context of Ethereum DApp development, "gas" refers to a unit of measurement for the computational work required to execute operations or smart contracts on the Ethereum network. Each operation or transaction on the Ethereum network consumes a certain amount of gas, which is paid for in Ether (ETH). Gas is used to prevent malicious users from clogging the network with infinite loops or inefficient code. The gas limit is the maximum amount of gas that a user is willing to pay for a transaction, and the gas price is the amount of Ether the user is willing to pay per unit of gas. If the gas consumed exceeds the gas limit, the transaction will fail and any unused gas will be refunded.
