In this episode of Syntax, Wes and Scott answer coding questions posed by ChatGPT like what’s the difference between rem and em in CSS, the difference between a callback function and a promse in Node, what are Fastify plugins, and more!

Show Notes * 00:19 The premise for this Stump’d * 05:46 Scott’s weekend story * 09:36 What is the difference between a for loop and a while loop in JavaScript? * 11:11 What is the difference between the “em” and “rem” units in CSS, and when would you use each of them? * 13:15 What is the difference between a callback function and a promise in Node.js? * 14:57 In JavaScript, what is the difference between a function declaration, a function expression, and an arrow function, and how do they affect the concept of hoisting? * 18:39 How do you define a custom scalar type in GraphQL? * 21:30 With Deno, can you provide an example of an experimental API that requires the “–unstable” flag and explain its purpose? * 26:59 What’s the difference between a div and a span? * 28:01 What is aspect ratio? * 29:07 If it’s not supported by all browsers, how could you maintain aspect ratio? * 30:11 Can you explain the purpose of the beforeUpdate lifecycle function in Svelte, and provide a simple use case for it? * 32:33 What is the difference between unknown and any in TypeScript, and when should each be used? * 34:42 In TypeScript, what is a mapped type, and how can you use it to create a new type that makes all properties of an existing type optional? * 36:21 What are Fastify plugins, and how can they be used to extend the functionality of a Fastify application? * 37:57 In React, what is the purpose of the React.memo higher-order component, and how does it help improve the performance of a functional component? * 39:53 How would you create a custom HTML element that is styled with CSS and has dynamic behavior using JavaScript? * 41:57 What is the Intersection Observer API, and how can you use it to implement infinite scrolling in a web application? * 49:00 SIIIIICK ××× PIIIICKS ×××

××× SIIIIICK ××× PIIIICKS ××× * Scott: The Rodge Tapes * Wes: Shenzhen Rebow Technology - Neon Sign

Shameless Plugs * Scott: LevelUp Tutorials * Wes: Wes Bos Tutorials

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