看了很多关于TypeScript的文章,总体说来没有很好的,一个系统的学习TypeScript的资源. 接下来,我将给大家带来TypeScript的系列,让你和我一样,一步一步的学习TypeScript,并且学以致用. 什么是TypeScript呢 在TypeScript的官方网站上面有这样的描述: TypeScript is a typed superset of JavaScript that compiles to plain JavaScript. Any browser. Any ho…
[TypeScript] JSON对象转TypeScript对象范例 Playground http://tinyurl.com/nv4x9ak Samples class DataTable { public columns: Array<string>; public rows: Array<DataRow>; } class DataRow { public cells: Array<string>; } class Test { public jsonObjec…
This lesson shows you how to install TypeScript and run the TypeScript compiler against a .ts file from the command line. install: npm install -g typescript tsc -v // version app.ts: class Person{} RUN: tsc app.ts You will see the js file with the sa…
It's common in Javascript for functions to accept different argument types and to also return different types. In this lesson we learn how to 'teach' Typescript about these dynamic functions so that we can still benefit from the powerful static type…
One of the most confusing parts of getting started with TypeScript is figuring out how to use all the libraries that you know and love from JavaScript. This lesson walks you through including Lodash in your project, installing Lodash definition files…
This lesson walks you through creating your first .tsconfig configuration file which will tell the TypeScript compiler how to treat your .ts files. Init a config.json file: tsc --init tsconfig.json, will be created: { "compilerOptions": { "…
When looking at large numbers in code (such as 1800000) it’s oftentimes difficult for the human eye to quickly see how big the number actually is. TypeScript allows us to use numeric separators to write numbers in a more human readable format (such a…
In this lesson we cover all the details of how to sort a list of items using TypeScript. We also present a few tricks to make your sort logic more readable and maintainable using TypeScript. .sort() function is a mutation function, it means it will m…
TypeScript 3.7 adds support for optional chaining. This lesson shows you how to use it in your code to handle properties that can be null or undefined. interface A { b?: B; } interface B { c: string; } const a: A = {}; console.log(a.b?.c);…
