Solidity Tips

Tips for efficient, secure contracts in the Solidity Programming Language. Program the World Computer.

[Solidity Tips @SolidityTips]

@BitPay #ETHEREUM

[Solidity Tips @SolidityTips]

NOTICE : MyEtherWallet . com highjacked on Google Public DNS

https://t.co/rl1wOs1wys

[Andreas (aantonop Team) @aantonop]

Final month of drafting for "Mastering Ethereum". If you'd like to contribute, there are tasks for every skill level of contributor.

https://t.co/dEFinakyfe

https://t.co/zhGtXsAs86

[Solidity Tips @SolidityTips]

Want to _really_ know Ethereum down to the lowest bits? Read the technical specification! For a gentler introduction than the 'yellow paper' , check out the ' Ethereum beige paper'
https://t.co/pBRJV3WPa8

#ETHEREUM

[Felipe @PhilCrypto77]

A bit of positive news for #Ethereum.... https://t.co/3T6tp7VnT0

[Consensys.eth @Consensys]

#Blockchain can get pretty technical, even for our technical writer @micahdameron. He recalls how he first made sense of the #Ethereum Yellow Paper and explains his motives for the Beige Paper––a more approachable version for the larger crypto community. https://t.co/AGwBi7AU5F

[Solidity Tips @SolidityTips]

For a complete example of events in Solidity, check out this contract:
https://t.co/Dym0eGvVCU

#ETHEREUM #smartcontracts

[Solidity Tips @SolidityTips]

events can have at most three parameters designated as 'indexed'. This allows us to search for these parameter values. It is also possible to filter for specific values via web3.

#ETHEREUM #smartcontracts

[Solidity Tips @SolidityTips]

events are declared using the 'Event' keyword. Create many different events for debugging, or just to keep an eye on your contracts :)

event Deposit (
address indexed _from,
bytes32 indexed _id,
uint _value
);

#ETHEREUM #smartcontracts

[MyEtherWallet | MEW @myetherwallet]

For all assembly fans out there, great read! https://t.co/5XmC4WpOfB

[Solidity Tips @SolidityTips]

Events are inheritable members of contracts. When emitted, the arguments are stored within the transaction log.

#ETHEREUM #smartcontracts

[Solidity Tips @SolidityTips]

We can find out how much ether the caller of our contract has by checking 'msg.sender.balance'

#Ethereum #Blockchain #smartcontracts

[Anthony Pompliano 🌪 @APompliano]

Too many people are racing to start crypto projects and not enough people are racing to solve actual problems.

[Ledger @Ledger]

New firmware update 1.4.1 available for the Nano S! https://t.co/91J65EQRX0

[Cred @CryptoCred]

Parents - is your teen texting about price action?

Watch out for these commonly used terms:

LOL - Lots Of Liquidity

WTF - What Time Frame

ASL - Asian Session Lows

LMAO - Lows Made Above Orderblock

STFU - Support Tested From Underneath

ROFL - Retail Orders Forming Lows

[Solidity Tips @SolidityTips]

Events are defined within the smart contract, and can be emitted when something important happens.

Define:
event LogDepositMade(address accountAddress, uint amount);

Fire within a function:
LogDepositMade(msg.sender, msg.value);

#Ethereum

[Solidity Tips @SolidityTips]

We all know this! Which is why we strive for safe, secure smart contracts.

https://t.co/UE1zuqd4uD

[ShapeShift @ShapeShift]

No Blockchain Is an Island 🏝https://t.co/hKkrBoTxL6

[YourMillenialDad 𒌋𒉈𒂗 @Msanmiguel16]

@SolidityTips Woohoo 🙌🏽

What a cool little surprise for a Thursday! Much gratitude and appreciation for you guys.
Keep on #educating🤓🧠🤯

[Solidity Tips @SolidityTips]

Solidity maps can contain other maps.

"A map to a map" is used within the ERC20 token standard:

mapping(address => mapping (address => uint256)) allowed;

#Ethereum