TSConf 2018 has 5 hours of content in JavaScript javascripttypescript and more.
The first conference ever focused completely on TypeScript! Beyond the typical introduction to TypeScript talk, we’ll spend the day discussing best practices and advanced features of the language, including information from key members of the TypeScript team. All in an informal and fun environment!

Anders Hejlsberg - 65 minstypescriptjavascript

Josh Thomas - 25 minstypescriptstenciljsjavascript

Sarah Higley - 24 minstypescriptjavascriptuser-interfacedesign

Mohsen Azimi - 32 minstypescriptjavascriptswaggertypes

Rodoslav Kirov, Bowen Ni - 34 minstypescriptjavascript

Mike Lazer-Walker - 25 minstypescriptjavascript

David Sherret - 23 minstypescriptjavascript

Devon Zuegel - 22 minstypescriptjavascriptwebpackethereumsmart-contractsblockchain