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.

A

ABI Decode (Solidity Code Example)

ABI Encode (Solidity Code Example)

Accessing Private Data Hack (Solidity Code Example)

Arithmetic Overflow and Underflow Hack (Solidity Code Example)

Array (Solidity Code Example)

Assembly Binary Exponentiation (Solidity Code Example)

Assembly Conditional Statements (Solidity Code Example)

Assembly Error (Solidity Code Example)

Assembly Loop (Solidity Code Example)

Assembly Math (Solidity Code Example)

Assembly Variable (Solidity Code Example)

B

Bi-Directional Payment Channel (Solidity Code Example)

Bitwise Operators (Solidity Code Example)

Block Timestamp Manipulation Hack (Solidity Code Example)

Bypass Contract Size Check Hack (Solidity Code Example)

D

DAI Proxy Examples (Solidity Code Example)

Data Locations - Storage, Memory and Calldata (Solidity Code Example)

Data structures in Solidity and Vyper

Data Types - References (Vyper Code Example)

Data Types - Values (Vyper Code Example)

Debug with Print (Vyper Code Example)

Decentralization

Decentralized App (dApp)

Decentralized Autonomous Organization (DAO)

Decentralized Exchange (DEX)

Decentralized Finance (DeFi)

Default Function (Vyper Code Example)

Delegate Call (Vyper Code Example)

Delegatecall (Solidity Code Example)

Delegatecall Hack (Solidity Code Example)

Denial of Service Hack (Solidity Code Example)

Deploy Any Contract (Solidity Code Example)

Deploy Different Contracts at the Same Address Hack (Solidity Code Example)

Discrete Staking Rewards (Solidity Code Example)

Dutch Auction (Solidity Code Example)

Dynamic Arrays (Vyper Code Example)

E

Echidna Fuzz Testing (Solidity Code Example)

Enum (Solidity Code Example)

Error (Solidity Code Example)

Error (Vyper Code Example)

Ether and Wei (Solidity Code Example)

Ether Wallet (Solidity Code Example)

Ethereum Virtual Machine (EVM)

Event (Vyper Code Example)

Events (Solidity Code Example)

Events Advanced (Solidity Code Example)

EVM Memory Layout (Solidity Code Example)

EVM Storage (Solidity Code Example)

F

Fallback (Solidity Code Example)

For and While Loop (Solidity Code Example)

For Loop (Vyper Code Example)

Foundry Authorization (Solidity Code Example)

Foundry Basic (Solidity Code Example)

Foundry Error (Solidity Code Example)

Foundry Event (Solidity Code Example)

Foundry Label (Solidity Code Example)

Foundry Mock Call (Solidity Code Example)

Foundry Send (Solidity Code Example)

Foundry Sign (Solidity Code Example)

Foundry Time (Solidity Code Example)

Front Running Hack (Solidity Code Example)

Function (Solidity Code Example)

Function (Vyper Code Example)

Function Modifier (Solidity Code Example)

Function Selector (Solidity Code Example)

G

Gas and Gas Price (Solidity Code Example)

Gas Saving Techniques (Solidity Code Example)

Gasless Token Transfer (Solidity Code Example)

Governance Attack

H

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)

I

If / Else (Solidity Code Example)

If Else Conditional Statement (Vyper Code Example)

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)

Iterable Mapping (Solidity Code Example)

K

L

Library (Solidity Code Example)

Linear Interpolation (Vyper Code Example)

M

Mapping (Solidity Code Example)

Mapping in Solidity

Memory in Solidity

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)

N

#

63 / 64 Gas Rule (Solidity Code Example)

O

P

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 and Public State Variables (Vyper Code Example)

Proof of History (PoH)

R

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 Attack

Reentrancy Lock (Vyper Code Example)

T

Time Lock (Solidity Code Example)

Transient Storage (Solidity Code Example)

Try / Catch (Solidity Code Example)

Turing-complete

U

Uint256 in Solidity

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)

Unit Test in Solidity

Unsafe Math (Vyper Code Example)

Upgradeable Proxy (Solidity Code Example)

User Defined Value Types (Solidity Code Example)

V

Variable in Solidity

Variables (Solidity Code Example)

Vault Contract (Solidity Code Example)

Vault Inflation Hack (Solidity Code Example)

Verify Signature (Vyper Code Example)

Verifying Signature (Solidity Code Example)

View and Pure Functions (Solidity Code Example)

View and Pure Functions (Vyper Code Example)

Visibility (Solidity Code Example)

Vyper Functions

W

WETH Permit Hack (Solidity Code Example)

Write to Any Slot (Solidity Code Example)

EIPs/ERCs

ERC-1155 (Solidity Code Example)

ERC-20 (Solidity Code Example)

ERC-721 (Solidity Code Example)