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Understanding Ethereum Contract Calls: call, staticcall, and delegatecall
In Ethereum, smart contracts interact with each other and external accounts using different types of calls. Understanding these call types is crucial for developers to ensure the security and functionality of their contracts. Let's delve into the three major types of contract calls: call, staticcall, and delegatecall.
1. call
The call function is the most generic way to interact with other contracts. It can be used to send Ether and call functions on other contracts. When using call, the context (storage, balance, address) of the callee contract is isolated from the caller contract.
Usage:
(bool success, bytes memory data) = targetContract.call{value: msg.value}(abi.encodeWithSignature("functionName(args)"));
Key Points:
Can change state.
The callee contract's code is executed in its own context.
Gas is forwarded to the callee contract, but it can be limited by specifying gas. 2 replies
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