先贴上源码传送门: https://github.com/flowforever/yaryin.note
记事本网址: http://yindoc.com , 井号后面写你喜欢的文件名即可。
最近在研究NativeScript,NativeScript使用TypeScript,于是就顺便研究了ts。
不得不提到NativeScript源码学习,感觉学习到了不少东西,顺便也从上面扣了一个依赖注入的框架下来用,实际使用感觉非常给力。
文件地址: https://github.com/flowforever/yaryin.note/blob/master/utils/yok.ts
除了稍微修改一下依赖,其他基本没动。
ts 给我的第一印象就是清爽分明,配合WebStorm逆天的自动编译,写的过程中代码哪边编译不通过提示非常详细。
先贴两段代码:
serviceBase.ts
/* * * Created by trump on 15/4/23. */ /// <reference path="_references.d.ts"/> /// <reference path="./_references.d.ts"/> import db = require( ' db/db ' ); import Future = require( " fibers/future " ); import Fiber = require( ' fibers ' ); export class ServiceBase { constructor(table) { this .table = table; // 这个table就是mongoose的Model this .$table = Future.wrap(table); //配合node fibber 解决异步callback hell 太给力了 } table; $table; getAll() : IFuture <any> { return this .$table.findFuture.bind( this .table)({}); } add(model): IFuture <any> { return this .$table.createFuture.bind( this .table)(model); } findById(id: string ): IFuture<any> { return this .$table.findOneFuture.bind( this .table)({ _id: id }); } find(query:any): IFuture <any> { return this .$table.findFuture.bind( this .table)(query); } findOne(query:any): IFuture <any> { return this .$table.findOneFuture.bind( this .table)(query); } }
documentServices.ts
1 /// <reference path="./_references.d.ts"/> 2 import db = require( ' db/db ' ); 3 4 import Future = require( " fibers/future " ); 5 import Fiber = require( ' fibers ' ); 6 import sb = require( ' ./servicesBase ' ); 7 8 export class Document extends sb.ServiceBase { 9 10 constructor($db) { 11 super( $db.Document ); 12 this .db = $db; 13 } 14 15 db; 16 17 getList() : IFuture<any> { 18 return this .getAll(); 19 } 20 21 } 22 23 $injector.register( ' documentServices ' , Document); // 眼尖的同学会看到这行代码,没错这边将DocumentService注入到容器里面,在接下来的controller中我们就不需要require DocumentService 这个类写一对的路径了
controller/api.ts
/// <reference path="_references.d.ts"/> import express = require( ' express ' ); import services = require( ' services/documentServices ' ); class Controller { constructor($documentServices) { this .services = $documentServices; // 我们这边只需要在构造函数里面指定好依赖的名称,yok框架就帮我们做好一切了 } services; // = <services.Document>$injector.resolve('documentServices'); ' get/:name ' (req:express.Request, res:express.Response) { (() => { var doc = this .services.findOne({ name: req. params .name }).wait(); res.send(doc || {}); }).future()(); } ' [post]edit ' (req:express.Request, res:express.Response) { (() => { var saved = null ; if (! req.body._id) { saved = this .services.add({ name: req.body.name , content: req.body.content }).wait(); res.send(saved); } else { saved = this .services.findById(req.body._id).wait(); saved.content = req.body.content; saved.name = req.body.name; saved.save(function(){ res.send(saved); }); } }).future()() } rename(req:express.Request, res:express.Response) { } remove(req, res) { } } $injector.register( ' apiHomeController ' , Controller); module.exports = $injector.resolve( ' apiHomeController ' );
总体来说:
TypeScript 开发很给力,
NativeScript的那套依赖注入也很给力。
查看更多关于使用TypeScript开发一个在线记事本,支持离线存储的详细内容...
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