Ethereum and Javascript - what's the big deal?
summary
Walks through Solidity, deploys a small exchange-rate contract, and wires a front end with web3.js so a browser can call functions, sign transactions and pay gas. Uses remix + JavaScript VM to compile and test, then shows metamask parity ganache flows, truffle migrations and the ABI-driven front end. Sets a gold price (50 × 10^18) and cash rate (~3 × 10^18) to compute ~150 per unit, sees transactions sometimes fail when sent from the wrong account, and demonstrates events, reverts and successful state changes.
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chapters (9)
- 0:00Introduction
- 13:53What is a blockchain and how it works
- 27:36Ethereum smart contracts
- 1:00:14Deploying a smart contract
- 1:37:15Ethereum dev tools
- 2:37:56Building a voting game
- 3:00:12Contract interaction
- 3:12:34Gas and economics
- 3:22:13Security and wallets
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