injectable angular2

This article will start from scratch to write the actual code to complete a ANGULAR2 demo. The digression is actually ANGULAR2 official website's quick Start Project already very cool, but its emphasis fast two words, only enough to practice the play, actually GitHub has already had some good angular2-starter. 1. Install the necessary node environment and NPM O

Angular2 and TypescriptOriginal link: Https://www.infoq.com/articles/Angular2-TypeScript-High-Level-OverviewYakov Fain Posted on APR 26, 2016--------------------------------------------------------------------------------------------------------------- ---------------Angularjs is currently the most popular JavaScript framework available for creating Web applications. And now

Angular's idea: always delegate data access to a supportive service class.Angular application: Use the Angular extension syntax to write HTML templates, use component classes to manage these templates, add application logic with services, and package publishing components and services with modules.We start the app by booting the root module. Angular takes over, displays the content of the app in the browser, and responds to the user's interactions based on the instructions we provide.Eight major

= {friends:res[0].friends, customer:res[1]});Cancel observables MonitoringObservales supports unsubscribe. If you inadvertently make an HTTP request and want to cancel the processing of the response.Getcapitol (country) { if(this. pendingrequest) { this. Pendingrequest.unsubscribe (); } This this. http. Get ('./country-info/' + country) = = Res.json () )this. Capitol = res.capitol);} Unsubscribe () effectively eliminates the p

Now I'm doing a project with ng1.5.8, Ng's advantages and characteristics I do not have to say, ng1 after the update to 1.5/1.6 has not released a new version, NG2 has been on the test for a long time, as many systems and frameworks, each big version of the update will have new features to join in, Although has not used NG2 to do enterprise-level projects, usually also understand a lot of ng2 improvements, the following to comb a few ng1 and ng2 between some of the differences;

Sitestatetype = { [key:string]: any}; @Injectable () Export class envsvc{ _envstate:sitestatetype = { url:window.location.href,//call Envhelper Gets the current application environment Configuration Config: Envhelper.getenvconfig (window.location.href) }; Constructor () { } get Envstate () {//In an open get application environment state, clone a copy of _envstate, avoid external program modification Configuration Return this._envstate

Details about Angular2 form-Template-Driven Forms ), In web development, form estimation is the most commonly used one, and it is also the most troublesome and prone to problems. In a slightly more complex application, in addition to using form elements to collect data, we also need to verify that several pieces of data may be associated with each other, then, different business logic is called based on different data values. Using the data binding fu

In the past few years, angular1.x has obviously been very successful. But because of the initial architecture design and the rapid development of web standards, it gradually shows its lag and not adapt. These issues include performance bottlenecks, web standards that lag behind rapid development, mobile multiplatform applications, and learning difficulties.So the angular team finally decided to build the ANGULAR2 framework in a completely new way. The

First, prefaceJust last month, a colleague of the company suggested that the current front-end should be used to angularjs for development, and we were using the ASP. NET 5 project, originally my plan is to use typescript direct ANGULAR2 development. So take this time to write about how to build a typescript-based ANGUALR2 project under ASP. NET 5, and let's get to the point.Second, the Environment configurationIf the reader directly according to Angu

Angular2 explains how to build an environment and how to develop it. Angular-CLI Speaking of cli, there is no stranger to everyone. Every framework has a corresponding cli, commonly known as scaffolding. Angular2 itself provides a starting project angular2-quickstart, I tried it, found that not very easy to use, most of the other extensions need to be installed o

The release of Angular2 has brought about a heated discussion. It was a long time ago in preparation. At that time, the official answer was to thoroughly overturn the rewriting. After the publication, everyone's call was that the learning cost was too high, although some concepts in 1.x are removed, typescript is added. Although it is not mandatory, I recommend you try it. After all, this version is a product of Google and Microsoft.If you want to

Starting with the 2016 V1 version, the Wijmo UI control supports angular 2. Wijmo 2016 v1 strong release, full support angular 2! This article describes using ANGULAR2 to create a html5/typescript based input control.Steps: 1. Create a project using the Visual Studio HTML application. 2. Delete Index.html,app.ts and app.css files. Select Typescript Project Settings, specify COMMONJS as the project model system, and, in order to get

Tags: res introduction persistence development environment service experience environment Building control knowledgeMulti-User Blog system based on mean full stack architecture (ANGULAR2+NODE+MONGODB)Course Study Address: http://www.xuetuwuyou.com/course/223The course out of self-study, worry-free network: http://www.xuetuwuyou.comCourse IntroductionI. Introduction of the CourseMean is a modern web development framework for the JavaScript platform, wh

Hello everyone, today to introduce you to the angular, I believe that the front-end of the small partners are aware of Angular's name, Angularjs since 2012 release has been widely concerned about. For the first time, he put forward the concept of two-way binding to everyone is refreshing, 2016 ANGULAR2 formally released, then angular2 what is there to look forward to the place, next talk about

Angular-cli Speaking of the CLI everyone is not unfamiliar, every frame will have a corresponding CLI, commonly known as scaffolding. ANGULAR2 itself provides a starter project Angular2-quickstart, I tried it, and found that it was not very good, and that most of the other extensions needed to be installed on their own, then looked at the ANGULAR-CLI deployment is simple and easy to use, but also provides

First knowledge of ANGULAR2Writing a Angular2 Hello World app is fairly simple and goes in three steps:1. Introduction of ANGULAR2 predefined types1 Import {component,view,bootstrap} from "Angular2/angular2";Import is a ES6 keyword used to introduce a type definition from a module. Here we introduce three types from th

0. IntroductionAngular1, as the most Popular front-end mv* framework, has brought great convenience to front-end development. However, there are still many bad places that are hard to change. The angular team developed a new angular, Angular2, based on the trends in web development and the experience gained in ANGULAR1.1. AdvantagesANGULAR2 has made radical changes and the results are obvious. Greatly improves performance More powerful mo

2017-08-04 front-end Daquan(Click the public number above for a quick follow-up) English: ANTONI Zolciak translations: Zhongcheng translation Www.zcfy.cc/article/vue-react-angularjs-and-angular2-our-take-on-popular-javascript-frameworks-3668.html If you have a good article to submit, please click here to learn more An interesting fact: the list of the 2017 most worthwhile programming languages that IBM has published, JavaScript i

Learn Angular2 with me.Course Study Address: http://www.xuetuwuyou.com/course/234The course out of self-study, worry-free network: http://www.xuetuwuyou.comLecturer: Wind Dancing SmokeThe course mainly teaches the popular front-end mainstream framework Angular2, including but not limited to: typescript advanced syntax, object-oriented, modular module mechanism, ANGULAR2