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# solidity

For the Solidity programming language used on EVM chains.

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

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"?

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

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

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

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

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?

Ethereum-Solidity Quiz Q16: What is impermanent loss?

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

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

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

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

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

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

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

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

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Ethereum-Solidity Quiz Q11: What is TWAP?

Ethereum-Solidity Quiz Q11: What is TWAP?

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Ethereum-Solidity Quiz Q9: What is a flashloan?

Ethereum-Solidity Quiz Q9: What is a flashloan?

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

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

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

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

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

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 Q7: What is the "solc optimizer" in Solidity?

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

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Smart Contract working in etherium with Metamask wallet

Smart Contract working in etherium with Metamask wallet

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Oasis for Developers: an underrated EVM for privacy-first dApps

Oasis for Developers: an underrated EVM for privacy-first dApps

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Ethereum-Solidity Quiz Q6: What is the max bytecode size for smart contract deployment on Ethereum?

Ethereum-Solidity Quiz Q6: What is the max bytecode size for smart contract deployment on Ethereum?

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Ethereum-Solidity Quiz Q4: What is the Ethereum Mempool?

Ethereum-Solidity Quiz Q4: What is the Ethereum Mempool?

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# XChainJS Check Transaction Example

# XChainJS Check Transaction Example

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# XChainJS Liquidity Example (THORChain)

# XChainJS Liquidity Example (THORChain)

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2 min read
@xchainjs/xchain-util: Install, Use & Build Cross-Chain Crypto Apps (with TypeScript)

@xchainjs/xchain-util: Install, Use & Build Cross-Chain Crypto Apps (with TypeScript)

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3 min read
Your Career, Onchain: Building a Resume Protocol with Purpose and Trust

Your Career, Onchain: Building a Resume Protocol with Purpose and Trust

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4 min read
Architecting RWAs: Architecting RWAs: How We Built a Modular Policy Engine for Tokenized Assets

Architecting RWAs: Architecting RWAs: How We Built a Modular Policy Engine for Tokenized Assets

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Vue + XChainJS Example

Vue + XChainJS Example

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