angular and firebase

The angular team recently released the official version of angular 1.5, which implemented a major upgrade that still uses 1. The X-version developer will be able to easily transition to angular 2 development. "The purpose of this release is to" improve the angular 2 upgrade path, "Pete Bacon Darwin wrote in a blog pos

Upgrade angular-cli: 1.0.0-beta.28.3 to @ angular/cli: 1.0.0, Now Angular CLI replaces angular-cli with @ angular/cli in npm, and it only supports Node6.9.0 or a later version, npm 3 or a later version. Therefore, upgrade node and npm before upgrading

To learn the scope of Angular, angular Angular Scope In a web application built with angular, the scope concept runs through it. Many Commands in angular views create a scope, such as ng-app and ng-controller. This scope is injected when we write the Controller constructor.

Set angular public style sheets and angular Style Sheets I. symptom: Newly created projects are directly displayed in the src directory. If global styles of other third parties are used, they cannot be managed in one place. Ii. solution: 1. Move the style sheet. In the assets folder (which usually contains some static files), create a css folder and then paste the external styles.css file (or custom

Today do some diagram to illustrate angular, because angular is too complex, do not know what the figure is better, so the random draw some, I hope someone can read.First, the source file compilation merge sequence diagramSecond, Angular.module function diagramThree, Publishexternalapi function diagramIv. Injector Factory Function Createinjector internal Providercache and InstancecacheAngular Source analysi

A @Directive can also listen to events on their host element using @HostListener . This allows your to add behaviors, react to user input and update or modify properties on the element without have to Create a custom component.Import {Directive, Hostlistener, hostbinding, Input} from '@angular/core'; @Directive ({selector:'[clickable]'}) Exportclassclickabledirective {@Input ('clickable') text; @HostBinding ()GetInnerText () {if( This. Text) { re

When you create a form in Angular 2, you can easily get all of the values from the form using Controlgroup and Controls. Bind [Ng-form-model] to the Form bind to Controlgoup Bind [Ng-form-control] to the Input bind to Gontrol Import {Component, View, Form_directives, Controlgroup, Control} from ' Angular2/angular2 '; @Component ({selector:' Field-form '}) @View ({directives: [form_directives], Template: '[ng-form-model]= "J

Angular. ModuleAngular module Configuration interface.Method :Provider (Name,providertype);Name: Service names.ProviderType: Creates a constructor for an instance of a service.Factory (Name,providerfunction);Name: Service names.Providerfunction: A function that creates an instance of the service.Service (Name,constructor);Name: Service names.Constructor: A constructor that will be instantiated.Value (Name,object);Name: Service names.Object: The servic

Use angular to help you implement drag and drop. Use angular to implement drag and drop. There are multiple ways to drag and drop. Here we will take a look at the drag of angular. 　　

1. What are the outstanding advantages of angular?1) MVC based on Html-javascript2) Dependency Injection3) Data Two-way binding, responsive page design4) Modular, custom directives2. Simple Word Data binding1) Code:1 inputtype= "text"Ng-model= "Hello1">2 3 inputtype= "text"Ng-model= "Hello2">4 5 textareaNg-bind= "Hello1"name=""ID=""cols= "+"rows= "Ten">textarea>6 7 spanclass= "Bg-danger">{{HELLO1}} {{Hello2}}span>Simple words

Just like passing in a array to*ngFor, you can pass in any value into the your structural directive so the it can render templates based on those values. It ' s crucial to understand how the*directiveSyntax expands into aand adds a custom@InputBased on the syntax, you can use your own data. The syntax looks like:*three= "Let message from Messages">{{message.to}}-{{ Message.message}}h2>For template It would looks like:[Threefrom]= "Messages">template> It Combimes ' three ' and ' from ' keywords.S

Explanation: html tags and content are automatically escaped when Angular. js data is bound. angular. js escaping AngularJS binds data in the form of strings by default, that is, it does not escape and accept all html tags in your data. This improves security and prevents html Tag injection attacks, however, it is sometimes necessary, especially when reading formatted text from the database, it cannot be no

AngularJS Modulevar app = angular. Module('myApp', []); AngularJS ControllerApp.Controller(‘Myctrlfunction ( Span class= "Hl-code" >$scope) { $scope.firstname= "Johnscope.lastname= "Doe "}) AngularJS instancesdiv Ng-app="myApp" ng-controller="Myctrl" > name: input type= "text" ng-model= "firstName ">br> surname: input type= "text" ng-model= "lastName" >br> br> name: {{firstName + ""

> + Div> - the Scripttype= ' Text/javascript 'src=".. /.. /js/angular-1.5.5/angular.js ">Script> * Scripttype= "Text/javascript"> $ Angular.module ('myApp', [])Panax Notoginseng . Controller ('Myctrl', function($scope) { - $scope. MyStyle={background:'Lightgray'}; //add an initialized background color the $scope. Enter= function () { + This. Mystyle.background= 'Pink';//mouse move in background color A }; the $scope. Leave= function ()

Angular service plug-in 1 -- Dialog Box prompt box, angular service plug-inDialog Box Service: (The modal style of amazeui needs to be called) Const angular = require ("angular"); const jqLite = angular. element;/*** @ ngdoc service * @ name commonModal * @ module common. m

Angular. js, React. js integration, angular. jsreact. jsRequired knowledge Requirejs, Angularjs, and Reactjs can view the relevant content written in this blog for necessary knowledge.Integrate Angular. js and React. js In angular. angular has been mentioned in the love and

) toggleon:toggleoncomponent; @ContentChild (toggleoffcomponent) Toggleoff: Toggleoffcomponent, @ContentChild (togglebuttoncomponent) togglebutton:togglebuttoncomponent;Listen for child component ' s Ouput event:Toggle-button component has the Output event call ' toggle ':@Component ({selector:'Toggle-button', Template:'',}) Exportclasstogglebuttoncomponent {@Input () On:boolean; @Output () Toggle:eventemitterNewEventemitter (); OnClick () { This. on =! This. On; This. Toggle.emit ( This. On);

In Angular. JS, this points to details, and angular. jsthis points [This details] 1. Who calls the function and who points to this. ① This points to, and can always be an object !!!!!! ② Who this points to will never depend on where this is written !! It depends on where the function is called. ③ This indicates the object, which is called the context of the function, or the caller of the function. 2. ※※※※※t

Angular. element method summary, angular. element AddClass ()-Add the specified style class name for each Matching ElementAfter ()-insert the content specified by the parameter after each element in the matched element set as its sibling node.Append ()-insert the parameter content at the end of each Matching ElementAttr ()-gets the attribute value of the first element in the matched element set.Bind ()-bind

How to handle page flashes in Angular. js and angular. js Preface When you use {} to bind data, a full screen of {xxx} appears during page loading. The data has not yet responded, but the page has been rendered. This is because the browser and angularjs both consume a certain amount of time to render the page. This interval may be very small, or even invisible. This situation is normal, but it may take a lo