Resources

Glossary

All things DeFi and dev in plain English. Our glossary breaks down complex terms and concepts into relatable language, making it easier for you to grasp the essentials of decentralized finance.
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EIPs/ERCs

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EIPs/ERCs

Front Running Hack (Solidity Code Example)
Deploy Different Contracts at the Same Address Hack (Solidity Code Example)
Denial of Service Hack (Solidity Code Example)
Delegatecall Hack (Solidity Code Example)
Bypass Contract Size Check Hack (Solidity Code Example)
Block Timestamp Manipulation Hack (Solidity Code Example)
Arithmetic Overflow and Underflow Hack (Solidity Code Example)
Accessing Private Data Hack (Solidity Code Example)
Calldata
ERC-20
ERC-721
Mempool
Consensus Algorithm
Cryptocurrency
Ethereum Virtual Machine (EVM)
Opcodes
Node
Blockchain
Governance Attack
Reentrancy
Write to Any Slot (Solidity Code Example)
Upgradeable Proxy (Solidity Code Example)
Unidirectional Payment Channel (Solidity Code Example)
Time Lock (Solidity Code Example)
Simple Bytecode Contract (Solidity Code Example)
Precompute Contract Address with Create2 (Solidity Code Example)
Multi-Sig Wallet (Solidity Code Example)
Multi Delegatecall (Solidity Code Example)
Multi Call (Solidity Code Example)
Minimal Proxy Contract (Solidity Code Example)
Merkle Tree (Solidity Code Example)
Merkle Airdrop (Solidity Code Example)
Iterable Mapping (Solidity Code Example)
Gasless Token Transfer (Solidity Code Example)
Ether Wallet (Solidity Code Example)
ERC-1155 (Solidity Code Example)
ERC-721 (Solidity Code Example)
ERC-20 (Solidity Code Example)
English Auction (Solidity Code Example)
Dutch Auction (Solidity Code Example)
Deploy Any Contract (Solidity Code Example)
Crowd Fund (Solidity Code Example)
Bi-Directional Payment Channel (Solidity Code Example)
Assembly Binary Exponentiation (Solidity Code Example)
Immutable
Cryptographic Verification
Visibility (Solidity Code Example)
View and Pure Functions (Solidity Code Example)
Verifying Signature (Solidity Code Example)
Variables (Solidity Code Example)
User Defined Value Types (Solidity Code Example)
Unchecked Math (Solidity Code Example)
Try / Catch (Solidity Code Example)
Transient Storage (Solidity Code Example)
Structs (Solidity Code Example)
Shadowing Inherited State Variables (Solidity Code Example)
Sending Ether: Transfer, Send, Call (Solidity Code Example)
Reading and Writing to a State Variable (Solidity Code Example)
Primitive Data Types (Solidity Code Example)
Payable (Solidity Code Example)
Mapping (Solidity Code Example)
Library (Solidity Code Example)
Interface (Solidity Code Example)
Inheritance (Solidity Code Example)
Import (Solidity Code Example)
Immutable (Solidity Code Example)
If / Else (Solidity Code Example)
Hashing with Keccak256 (Solidity Code Example)
Gas Saving Techniques (Solidity Code Example)
Gas and Gas Price (Solidity Code Example)
Function Selector (Solidity Code Example)
Function Modifier (Solidity Code Example)
Function (Solidity Code Example)
For and While Loop (Solidity Code Example)
Fallback (Solidity Code Example)
Events Advanced (Solidity Code Example)
Events (Solidity Code Example)
Ether and Wei (Solidity Code Example)
Error (Solidity Code Example)
Enum (Solidity Code Example)
Delegatecall (Solidity Code Example)
Data Locations - Storage, Memory and Calldata (Solidity Code Example)
Contract that Creates other Contracts (Solidity Code Example)
Constructor (Solidity Code Example)
Constants (Solidity Code Example)
Calling Parent Contracts (Solidity Code Example)
Calling Other Contract (Solidity Code Example)
Call (Solidity Code Example)
Bitwise Operators (Solidity Code Example)
Assembly Variable (Solidity Code Example)
Assembly Math (Solidity Code Example)
Assembly Loop (Solidity Code Example)
Assembly Error (Solidity Code Example)
Assembly Conditional Statements (Solidity Code Example)
Array (Solidity Code Example)
ABI Encode (Solidity Code Example)
ABI Decode (Solidity Code Example)
Flash Loan
State
Invariant Test
Function Selector (Solidity Code Example)
Fuzz Testing
Gas
Gas Saving Techniques (Solidity Code Example)
Gas and Gas Price (Solidity Code Example)
Gasless Token Transfer (Solidity Code Example)
Governance Attack
Hash
Hash Function
Hash Function (Vyper Code Example)
Hashing with Keccak256 (Solidity Code Example)
Hello World (Vyper Code Example)
Hiding Malicious Code with External Contract Hack (Solidity Code Example)
Honeypot Hack (Solidity Code Example)
If / Else (Solidity Code Example)
If Else Conditional Statement (Vyper Code Example)
Immutable
Immutable (Solidity Code Example)
Immutable (Vyper Code Example)
Import (Solidity Code Example)
Imports (Vyper Code Example)
Inheritance (Solidity Code Example)
Interface (Solidity Code Example)
Interface (Vyper Code Example)
Internal and External Functions (Vyper Code Example)
Invariant
Invariant Test
Iterable Mapping (Solidity Code Example)
Keccak256
Library (Solidity Code Example)
Linear Interpolation (Vyper Code Example)
Mapping (Solidity Code Example)
Memory
Mempool
Merkle Airdrop (Solidity Code Example)
Merkle Tree (Solidity Code Example)
Minimal Proxy Contract (Solidity Code Example)
Modules (Vyper Code Example)
Multi Call (Solidity Code Example)
Multi Delegatecall (Solidity Code Example)
Multi-Sig Wallet (Solidity Code Example)
Multi-Sig Wallet (Vyper Code Example)
Node
Nonce
Opcodes
Oracle
Payable (Solidity Code Example)
Payable (Vyper Code Example)
Phishing with tx.origin Hack (Solidity Code Example)
Precompute Contract Address with Create2 (Solidity Code Example)
Primitive Data Types (Solidity Code Example)
Private Key
Private and Public State Variables (Vyper Code Example)
Protocol
Public Key
Raw Call (Vyper Code Example)
Re-entrancy Hack (Solidity Code Example)
Reading and Writing to a State Variable (Solidity Code Example)
Rebase Token (Vyper Code Example)
Reentrancy
Reentrancy Attack
Reentrancy Lock (Vyper Code Example)
Self Destruct (Vyper Code Example)
Self Destruct Hack (Solidity Code Example)
Send Ether (Vyper Code Example)
Sending Ether: Transfer, Send, Call (Solidity Code Example)
Shadowing Inherited State Variables (Solidity Code Example)
Signature
Signature Replay Hack (Solidity Code Example)
Simple Bytecode Contract (Solidity Code Example)
Smart Contract
Smart Contract Metadata
Solidity Function
Source of Randomness Hack (Solidity Code Example)
Stable Swap AMM (Solidity Code Example)
Staking Rewards (Solidity Code Example)
State
Static Analysis
Structs
Structs (Solidity Code Example)
Syntax
Time Lock (Solidity Code Example)
Transaction
Transient Storage (Solidity Code Example)
Try / Catch (Solidity Code Example)
Turing-complete
Unchecked Math (Solidity Code Example)
Unidirectional Payment Channel (Solidity Code Example)
Uniswap V2 Add Remove Liquidity (Solidity Code Example)
Uniswap V2 Flash Swap (Solidity Code Example)
Uniswap V2 Optimal One Sided Supply (Solidity Code Example)
Uniswap V2 Swap (Solidity Code Example)
Uniswap V3 Flash Loan (Solidity Code Example)
Uniswap V3 Flash Swap Arbitrage (Solidity Code Example)
Uniswap V3 Liquidity (Solidity Code Examples)
Uniswap V3 Swaps (Solidity Code Examples)
Unsafe Math (Vyper Code Example)
Upgradeable Proxy (Solidity Code Example)
User Defined Value Types (Solidity Code Example)
VSCode