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TypeScript 101

TypeScript 101

Lightning Talks
Strange Loop 2017
8:30 PM - Friday, September 29th

Frances Coronel

September 29, 2017
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  1. A brief class that introduces the benefits TypeScript provides to

    large scale projects. Prerequisites: JavaScript 202 TypeScript 101
  2. W8, what is TypeScript? • free & open-source programming language

    developed & maintained by Microsoft • strict syntactical superset of JavaScript • eases development of large scale applications written in JavaScript • extends JavaScript by adding static types, classes, modules, interfaces & generics 5 years old
  3. The Nitty Gritty npm i -g typescript Installing TypeScript Compiling

    our file to JS tsc multiplication.ts Configuring options touch tsconfig.json npm i -g tslint Optional Installing TSLint
  4. 1. Referenced a symbol/ variable which is not declared in

    program 2. Not able to fully infer the type of a particular variable and warns against using it as is 3. Even if your source code has TypeScript errors, it will still produce JavaScript code which you can execute Spell Checker
  5. What Types Provide ✓ modular development ✓ can be learned

    easily ✓ non-invasive ✓ long-term vision ✓ clean output To Type or Not To Type Pros of JavaScript • EVERYWHERE • awesome libraries • flexible Cons of JavaScript • dynamic typing • lack of modularity • verbose patterns
  6. Option 1. Watch the creator of TypeScript talk about TypeScript

    at the #MSBuild Conference “What’s New In TypeScript” by Anders Hejlsberg
  7. Credits 1. Mathematical Finn Photo: https://glarbinator.deviantart.com/art/Mathematical-Finn-417768395 2. TypeScript Official Website:

    http://www.typescriptlang.org/ 3. Severus Snape Video: https://www.youtube.com/watch?v=PnOyBLT07R8 4. GitHub Icon: https://www.iconfinder.com/iconsets/ionicons 5. Twitter & LinkedIn Icons: https://www.iconfinder.com/iconsets/free-social-icons 6. Fonts: Segoe UI, SF Pro Text, Input Mono 7. Google Trends: https://g.co/trends/2M11R 8. TypeScript and JavaScript Logos: egghead.io 9. Stack Overflow 2017 Survey: https://insights.stackoverflow.com/survey/2017 10. TypeScript GIFs: http://twittervideodownloader.com/ & @typescriptlang 11. EdX Course: https://www.edx.org/course/introduction-typescript-2-microsoft-dev273x-0#! 12. List of Editors: https://www.wikiwand.com/en/TypeScript