In this Hasty Treat, Scott and Wes are back for a second edition of Stumped! where they try to stump each other with interview questions from 30 Seconds of Interviews. NativeScript - Sponsor NativeScript is an open source framework for building truly native mobile apps with Angular, Vue.js, TypeScript, or JavaScript. It’s is a great way for front-end developers to get started building native mobile apps. Get started today at nativescript.org/syntax. Show Notes 5:05 What are defer and async attributes on a script tag? 7:15 What are the differences between var, let, const and no keyword statements? 8:45 What is a callback? Can you show an example using one? 9:52 What is recursion and when is it useful? 12:06 What is the difference between the array methods map() and forEach()? Syntax Ep 023 14:02 What is Big O Notation? 15:28 What does 0.1 + 0.2 === 0.3 evaluate to? wtfjs 17:44 What is CSS BEM? Tweet us your tasty treats! Scott’s Instagram LevelUpTutorials Instagram Wes’ Instagram Wes’ Twitter Wes’ Facebook Scott’s Twitter Make sure to include @SyntaxFM in your tweets