A function call refers to the process of executing a named block of code that carries out a specific task. In blockchain platforms, particularly those that support smart contracts, function calls are crucial for interacting with the contract’s features.When a user wants to perform an action—like transferring tokens or querying data—they make a function call to the smart contract. This call contains specific instructions and parameters that dictate what the contract should do.The call can be initiated from a wallet or decentralized application (dApp). Once invoked, the contract reviews the call, executes the requested operation, and then returns the result. Function calls can involve reading data from the blockchain, updating the state of the smart contract, or sending assets. Each call typically incurs a fee, known as gas, which compensates validators for processing the request. Overall, function calls are essential for enabling interaction and functionality within blockchain ecosystems.