ng service (service)

ng service (service)

Create a service command: ng G Service Services / Service Name +

Note the use of services:

　　Using (Services) service requires, module.ts (root module) incorporated in app. And configure

1. import { storageService } form './services/storage.service';
2. Configuration [storage.service] providers in the
3. That page in the page is first referenced during the     import {storageService} form '../../services/storage.service
4. Statement way:
1. A method var storage = new storages.service ();
2. Method II using the constructor constructor (public storage: storageservice) {let s = this.storage.get (); console.log (s);}

　　constructor (public storage: stroageservice) sentence is equivalent to storage = new storageservice ()

 

　　this.storage.get () method is get a statement calling the service storage in

 

　　The same storageservice storageservice must be introduced class name: public storage

---

 

storage.service中

　　set(key:string,value:any){

　　　　loacalstorage.setitem(key,json.stringify(value));

　　}

　　get(key:string){

　　　　return Json.parse(localStorage.getItem(key))

　　}

　　remove(key:string){

　　　　localstorage.removeItem(key);

　　}