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# solidity

For the Solidity programming language used on EVM chains.

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The Night I Almost Lost Everything: A Guide to Stopping Reentrancy Attacks
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The Night I Almost Lost Everything: A Guide to Stopping Reentrancy Attacks

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2 min read
My Experience Building a Simple Web3 App Using Antigravity
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My Experience Building a Simple Web3 App Using Antigravity

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1 min read
Ethereum-Solidity Quiz Q24: What is the role of "0x" prefix in data representations?
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Ethereum-Solidity Quiz Q24: What is the role of "0x" prefix in data representations?

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1 min read
Ethereum-Solidity Quiz Q23: What is C3 Linearization in smart contract inheritance?
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Ethereum-Solidity Quiz Q23: What is C3 Linearization in smart contract inheritance?

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2 min read
Gas Inefficiencies Developers Don't Notice Until It's Too Late.
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Gas Inefficiencies Developers Don't Notice Until It's Too Late.

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6 min read
Ethereum-Solidity Quiz Q21: How does function overriding work in Solidity?
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Ethereum-Solidity Quiz Q21: How does function overriding work in Solidity?

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1 min read
Ethereum-Solidity Quiz Q19: Why is the "external" visibility modifier more gas efficient than "public"?
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Ethereum-Solidity Quiz Q19: Why is the "external" visibility modifier more gas efficient than "public"?

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1 min read
Ethereum-Solidity Quiz Q18: What type of modifiers are "view" and "pure"?
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Ethereum-Solidity Quiz Q18: What type of modifiers are "view" and "pure"?

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1 min read
Ethereum-Solidity Quiz Q20: What is "calldata"?
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Ethereum-Solidity Quiz Q20: What is "calldata"?

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1 min read
Ethereum-Solidity Quiz Q17: What visibility modifiers does Solidity use?
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Ethereum-Solidity Quiz Q17: What visibility modifiers does Solidity use?

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1 min read
Building a Production-Ready Prediction Market Smart Contract in Solidity: Complete Guide with Foundry
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Building a Production-Ready Prediction Market Smart Contract in Solidity: Complete Guide with Foundry

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7 min read
Ethereum-Solidity Quiz Q16: What is impermanent loss?
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Ethereum-Solidity Quiz Q16: What is impermanent loss?

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2 min read
Solidity Basics (Part 2) — Arrays, Mappings & Structs (Upgrading the Web3 Journey Logger)
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Solidity Basics (Part 2) — Arrays, Mappings & Structs (Upgrading the Web3 Journey Logger)

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5 min read
Ethereum-Solidity Quiz Q22: How are functions overridden using the "super" keyword?
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Ethereum-Solidity Quiz Q22: How are functions overridden using the "super" keyword?

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1 min read
Ethereum-Solidity Quiz Q15: What is the main difference between Transparent and UUPS upgradeable proxy patterns?
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Ethereum-Solidity Quiz Q15: What is the main difference between Transparent and UUPS upgradeable proxy patterns?

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1 min read
Ethereum-Solidity Quiz Q10: What is the Free Memory Pointer?
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Ethereum-Solidity Quiz Q10: What is the Free Memory Pointer?

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1 min read
Ethereum-Solidity Quiz Q12: What does this sequence of opcodes do? PUSH1 0x80 / PUSH1 0x40 / MSTORE
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Ethereum-Solidity Quiz Q12: What does this sequence of opcodes do? PUSH1 0x80 / PUSH1 0x40 / MSTORE

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1 min read
Ethereum-Solidity Quiz Q14: Why constructors can't be used in upgradeable contracts?
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Ethereum-Solidity Quiz Q14: Why constructors can't be used in upgradeable contracts?

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1 min read
Ethereum-Solidity Quiz Q11: What is TWAP?
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Ethereum-Solidity Quiz Q11: What is TWAP?

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1 min read
Ethereum-Solidity Quiz Q9: What is a flashloan?
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Ethereum-Solidity Quiz Q9: What is a flashloan?

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1 min read
Ethereum Account Abstraction (ERC-4337), Part 2: Implementation
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Ethereum Account Abstraction (ERC-4337), Part 2: Implementation

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1 min read
Ethereum-Solidity Quiz Q8: How can you deploy a Solidity smart contract with Foundry?
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Ethereum-Solidity Quiz Q8: How can you deploy a Solidity smart contract with Foundry?

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1 min read
Ethereum-Solidity Quiz Q13: What are the main sections in the bytecode of a compiled Solidity smart contract?
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Ethereum-Solidity Quiz Q13: What are the main sections in the bytecode of a compiled Solidity smart contract?

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1 min read
Ethereum-Solidity Quiz Q7: What is the "solc optimizer" in Solidity?
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Ethereum-Solidity Quiz Q7: What is the "solc optimizer" in Solidity?

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1 min read
Smart Contract working in etherium with Metamask wallet
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Smart Contract working in etherium with Metamask wallet

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3 min read
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