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event in solidity

Shubham Kunwar answered on April 11, 2022 Popularity 8/10 Helpfulness 5/10

answer event in solidity

related solidity events

event in solidity

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pragma solidity ^0.8.0;

contract EventLogging {
    event LogEvent(string indexed _message, address indexed _from);

    function triggerEvent(string memory _message) public {
        emit LogEvent(_message, msg.sender);
    }
}

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Source: Grepper

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Contributed on Jan 12 2024

Shubham Kunwar

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solidity events

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//Declare an Event
event Deposit(address indexed _from, bytes32 indexed _id, uint _value);

//Emit an event
emit Deposit(msg.sender, _id, msg.value);

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Contributed on Jan 26 2023

random user

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event in solidity documentation

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var options = {
    fromBlock: 0,
    address: web3.eth.defaultAccount,
    topics: ["0x0000000000000000000000000000000000000000000000000000000000000000", null, null]
};
web3.eth.subscribe('logs', options, function (error, result) {
    if (!error)
        console.log(result);
})
    .on("data", function (log) {
        console.log(log);
    })
    .on("changed", function (log) {
});

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Source: docs.soliditylang.org

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Contributed on Jun 25 2022

Enchanting Eel

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solidity events

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// Solidity program to demonstrate
// creating an event
pragma solidity ^0.4.21;

// Creating a contract
contract eventExample {

	// Declaring state variables
	uint256 public value = 0;

	// Declaring an event
	event Increment(address owner);

	// Defining a function for logging event
	function getValue(uint _a, uint _b) public {
		emit Increment(msg.sender);
		value = _a + _b;
	}
}

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Contributed on Apr 11 2022

Wild Whale

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event solidity

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let options = {
    filter: {
        value: ['1000', '1337']    //Only get events where transfer value was 1000 or 1337
    },
    fromBlock: 0,                  //Number || "earliest" || "pending" || "latest"
    toBlock: 'latest'
};

myContract.getPastEvents('Transfer', options)
    .then(results => console.log(results))
    .catch(err => throw err);

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Source: www.coinclarified.com

Tags: javascript j

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Contributed on Oct 19 2022

Worried Wallaby

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event in solidity

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