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Some re-phrasing and typos

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Philippe 2014-08-14 13:34:41 +02:00
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typescript.html.markdown
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@ -6,18 +6,19 @@ contributors:
TypeScript is a language that aims at easing development of large scale applications written in JavaScript. TypeScript is a language that aims at easing development of large scale applications written in JavaScript.
TypeScript adds common concepts such as classes, modules, interfaces, generics and (optional) static typing to JavaScript. TypeScript adds common concepts such as classes, modules, interfaces, generics and (optional) static typing to JavaScript.
It is a superset of JavaScript: any JavaScript code is valid TypeScript code so it can be added seamlessly to any project. It is a superset of JavaScript: all JavaScript code is valid TypeScript code so it can be added seamlessly to any project. In turn, the TypeScript compiler transform the code to JavaScript.
TypeScript code compiles down to JavaScript.
This article will focus only on TypeScript added syntax, everything else is plain [JavaScript] (../javascript/). This article will focus only on TypeScript added syntax, everything else is plain [JavaScript] (../javascript/).
To test TypeScript's compiler, head to the [Playground] (http://www.typescriptlang.org/Playground) where you will be able to type code, have auto completion and directly see the resulting JavaScript.
```ts ```ts
//There are 4 basic types in TypeScript //There are 3 basic types in TypeScript
var isDone: boolean = false; var isDone: boolean = false;
var lines: number = 42; var lines: number = 42;
var name: string = "Anders"; var name: string = "Anders";
//However, when it's impossible to know, there is the "Any" type //When it's impossible to know, there is the "Any" type
var notSure: any = 4; var notSure: any = 4;
notSure = "maybe a string instead"; notSure = "maybe a string instead";
notSure = false; // okay, definitely a boolean notSure = false; // okay, definitely a boolean
@ -67,7 +68,7 @@ mySearch = function(src: string, sub: string) {
``` ```
To test TypeScript's compiler, head to the [Playground] (http://www.typescriptlang.org/Playground).
## Further Reading ## Further Reading
* [TypeScript Official website] (http://www.typescriptlang.org/) * [TypeScript Official website] (http://www.typescriptlang.org/)