Cheat Sheet

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1. Definitions

// Set A contains elements 1,2 and 3
A = {1,2,3}
// 2 is an element of A
// 4 is not an element of A

2. Number Sets

Naturals    N = {1,2,3,4,...}
Integers Z = {...,-2,-1,0,1,2,...}
Rationals Q = Ratio of 2 integers. example…

Validating for Staleness

Earn interest using the Aave protocol: a JavaScript tutorial


Find and use oracles to retrieve off-chain data in your smart contracts

Image by Gerd Altmann from Pixabay

Choosing who we trust and share our lives with

Photo by Sam Manns on Unsplash

Alex Roan

Engineer at Chainlink Labs.

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