In this lesson we cover the key reason why programming languages need generics. We then show how use them effectively with TypeScript. We show plenty of examples where generics prevent common programming mistakes. class Query<T> { protected items: T…
It can be painful to write the same function repeatedly with different types. Typescript generics allow us to write 1 function and maintain whatever type(s) our function is given. This lesson covers syntax and a basic use case for Typescript generics…
ESLint 安装 yarn add -D eslint 生成配置文件 yarn eslint --init cli 选项 How would you like to use ESLint? To check syntax and find problems What type of modules does your project use? Javascript modules (import/export) Which framework does your project use? No…
If Typescript is the first language in which you've encountered generics, the concept can be quite difficult to understand. We skip the lecture in this lesson and dive straight into a real-world use-case that is guaranteed to help you understand the…
TypeScript outputs JavaScript, but what are you supposed to do with it? This lesson shows how to take the output and use SystemJS as the module loader so that you can use the files in your browser. To use system.js, first create a index.html, add sys…
