angular service example

The messageservice code is as follows: import { Injectable } from '@angular/core';import { Subject } from 'rxjs';@Injectable({ providedIn: 'root'})export class MessageService { private messageSource = new SubjectThe code of the message sending component is as follows: TS import { Component} from '@angular/core';import { MessageService } from '../service/message

Angular JS (angular.js) is a set of frames, templates, and data binding and rich UI components that are used to develop Web pages. It supports the entire development process, providing a framework for Web applications without the need for manual DOM operations. Angularjs is designed to overcome the lack of HTML in building applications. HTML is a good declarative language for static text presentation, but it is weak to build a Web application. Here A

Before doing a crud method on a page, in reality the Webapi module is often written in separate service, so modify the original design and structure, or need a lot of knowledge.2017.11.15 Add patch method to improve service program optimization notation2017.11.27 added promise return value processing, the server returns the error message after processing.Because all of the crud methods are written in the

Implementation example of converting jquery functions into angular commands The first thing you want to achieve is: show the following stars The initial implementation method was to add JS scripts to html pages, but foreigners do not like this. We must convert them into angular commands, so try again ~ I. Initial Implementation Method Ii. Change to

Usage$http (config);Arguments Config Object describing the request to is made and how it should is processed. The object has following Properties:method–{string}–http method (e.g. ' get ', ' POST ', etc) url–{string| Trustedobject}–absolute or relative URL of the resource is being requested; Or an object created by a call to $sce. Trustasresourceurl (URL). Params–{object. Example var req = {method : ' POST ', URL: ' http://example.com ', header

1.AngularJS, you can create your own services, or use built-in services;2. In Angularjs, a service is a function or object that can be used in your ANGULARJS application;Angularjs has built more than 30 services; there is a $location service that can return the URL of the current page;var app=angular.module (' myApp ', []);App.controller (' Customersctrl ', function ($scope, $location) {　　$scope. Myurl= $lo

']); return { angularmodules: [' Hellomodel ' }; });but, unfortunately, instead of starting from the time always said can not instantiate Hellomodel (the page I added ng-app= "hellomodel") I suspect is the JS file loading order, but later found out what the problem ah, especially tangled, Now still unresolved, if anyone can tell me the reason is greatly appreciated! Iv. Use the above custom directives in the pageIndex.jsV. DescriptionThe above controller

Scenes using angular are typically application-class sitesIt also means there's a lot of controller,service,directive and so on.Under normal circumstances we have to download and register the content once, due to the large number of files, the efficiency of the first load is really not small.Angular-async-loader an excellent Angular asynchronous load extension

The project team did a angular share last night, just to discuss the issue. Although not to do front-end development, but interest caused. Access to the following information for subsequent useOwn understanding: The service is new, factory is directly used to get to the service object, the service has a more this. Prov

Implementation example of converting jquery function into angular command, jqueryangular The first thing you want to achieve is: show the following stars The initial implementation method was to add JS scripts to html pages, but foreigners do not like this. We must convert them into angular commands, so try again ~ I. Initial Implementation Method Ii. Change

Service Get check list services.factory (' Checkservice ', [' $http ', ' $q ', function ($http , $q) {return{ checks:function (GroupName) {var deferred1= $q. Defer () $http. Get ("/ Checksjsonbygroup2?groupname= "+groupname) .success ( function (Data,status,header,config) { deferred1.resolve (data) }) .error (function (data,status,header,config) { deferred1.reject (data) }) returndeferred1.promise NBSP;NBSP;NBSP;}NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;}NB

TypeScript is used heavily as we build to our application, but TypeScript isn ' t required. If you want to Inject a Service without using TypeScript, you'll need to understand the decorator @Inject .Import {Component, View, Inject} from "Angular2/angular2"; Import {Todoservice} from"./todoservice"; @Component ({selector:' Todo-input '})//Define a ref by using XXX-YYY//Reference a ref by using XXXYYY@View ({Template: ' `}) Export class todoinput

When creating a service, need to inject the sercive into the bootstrap ():Import {bootstrap, Component, View} from "Angular2/angular2""./todoinput"; "./todoservice" ; @Component ({ selector:' app '}) @View ({ directives: [Todoinput], Template: ' '}) class app{}Bootstrap (APP, [Todoservice]) ;Todoservice.jsExport class todoservice{ = []; Addtodo (value:any):void { this. Todos.push (value); }}Inputtodo.js:Import {C

); the }, -GETALL:function(objectstorename,success,fail) { $ theDb.open (function () { the var thestore =Db.getobjectstore (objectstorename), thecursor =store.opencursor (), -data = []; in theCursor.onsuccess =function(e) { the varresult =E.target.result; About if(Result result!==NULL) { the Data.push (result.value); theResult.Continue(); the}Else { + success (data); - } the };BayiCursor.onerror=fail; the the },fail); - }, -

I just saw this section today.Excerpt, and later, after the actual operation is complete, all the code will beSometimes, it might is interesting to create configurable services. They is called providers, and despite being more complex to create, they can configured beforeBeing available to is injected inside other components.While the factory works by returning a object and the service with the constructor function, the provider relies on the $ Get fu

Angular Study notes--service constant

Angular + webpack2 example: angularwebpack2 I have studied webpack before, but I have never used it. This time, the company wants to build an h5 website, which is just used as a trainer. It is said that angular1x is not very friendly to mobile terminals, but it is mainly because angular1x is familiar and easy to use, if development is fast, other front-end mvc frameworks are not considered. Good webpack out

Use angular resource to load the JSON data in the Prioritydata.json and draw a doughnut chart with D3. Run index.html results:The JSON data in Prioritydata.json is as follows:{"Priority ": { "blocker": " Critical":, "Major": 5, "Minor": +, " Trivial": $}}The index.html code is as follows:D3 Tagged donut chart example using angular

highlighted shadows when clicked (2) The use of box-sizing:border-box, including padding pixel calculations (3) Position fixed and search jump combination (virtual keyboard caused) (4) Multi-view control of Angular-ui-router (5) The details of iOS Android system (6) Compression Angularjs code Dependency Injection problem ... The more important code The code is as follows Copy Code /* URL configuration of the

First, the benefit of choosing angular-ui-router Ui-router is a community library to improve the ng-route of many deficiencies Ui-router routers allow nested views (nested view) and multiple named Views (multiple named view), we may have more pages that need to inherit other parts, so it's useful. Implement different status links to different pages by building Ui-sref States allows you to easily pass information through $statspara