angular2 ui

Learn how to create a custom validator to check whether passwords match.H1>Password matchH1>formnovalidate AutoComplete= "Off"[Formgroup]= "Signupform"> Divclass= "Form-field"> label>Password:label> inputtype= "text"Formcontrolname= "Password"[(Ngmodel)]= "Signup.password"name= "Password"> Div> Divclass= "Form-field"> label>Confirm Password:label> inputtype= "text"Formcontrolname= "Confirm"[(Ngmodel)]= "Signup.confirm"name= "Confrim">Div>form> this. Signupform = fb.group ({

By learning these concepts, you can simply describe a tab button for an option feature:Data:1. Arrays:Instantiate a class of an array, if you want to use the data in this class, you need to use a public property in the component to storm the class such as heroes=heroes;Const Array Name heroes: Data structure in array =[]Command instructions1.*ngfor= "Let value of Arr/json" ==> {{value}}2. (click) = function name (parameter)Module template syntax for angular: https://www.angular.cn/docs/ts/latest

-of]= "items" #item = "" #i = "index">2 [{{i+1}}] {{item}} 3 Now the resulting results are more disciplined:1 2 3 Grammar sugarSimilar to Ngif, ANGULAR2 also provides two syntactic sugars for ngfor:1 // using template attribute 2 template= "ng-for #item of items; #i =index">...3// Use the * prefix 4 *ng-for= "#item of items; #i =index">...There is no doubt that you should try to use *ng-for 's simple notation, which can improve the readability of

Angular2: about * ngFor nested loop, angular2ngfor The data obtained in the project development should be traversed cyclically. However, in ng2, it seems that the Object cannot be traversed directly. datas: any = [ { num: 1, date: "2017-04-12", sellNum: "1231234", sellMpney: "1233", returnNum: "24"}, { num: 1, date: "2017-04-12", sellNum: "1231234", sellMpney: "1233", returnNum: "24"}, { num: 1, date: "2017-04-12", sellNum: "1231234", sellMpney: "

ANGULAR2 has two of the more useful upload files of the third-party library, one is ng2-file-upload , one is ng2-uploader . ng2-uploaderis a lightweight upload file support library, the function is weak, but ng2-file-upload is a feature more comprehensive upload file support library. Here ng2-file-upload is the main introduction of the use.The following are described in the Mac OS operating system.1. InstallationInstall with NPM. To open terminal in t

return an array of routing links. The router will eventually parse the array into a URL and a component view. We can also add a routerlinkactive directive to Appcomponent templates Template: ' 6. Router Status At the end of each navigation lifecycle, the router builds a activatedroute tree that represents the current state of the router. We can access the current Routerstate value in any application using the router service and its routerstate properties. 7.router_directives

The purpose of the angular module is to organize the logical structure of the app. The class used by @ngmodule in Ng is considered to be a NG module. Ngmodule can manage components, directives, pipes within the module, introduce service, and control the access of external components to internal members. ANGULAR2 has the concept of the module, and responds to the call of the backstage program, cohesion well-structured classes the low coupling. Module

component, app.component.ts, is just a container. Import {Component} from ' @angular/core '; @Component ({ selector: ' App-root ', templateurl: './app.component.html ' }) Export class appcomponent { } Implementation of bidirectional binding twoway-bind.component.ts: Import {Component, OnInit} from ' @angular/core '; @Component ({ selector: ' App-twoway-bind ', Template: ' Note that the above [(Ngmodel)] This writing, () represents the output, [] represents the input, th

() { this.info=student; } HTML: In property bindings, a value is passed from the model to the target property on the screen. We mark the target property by enclosing the name in square brackets, []. This is a one-way data binding from the model to the view. In event bindings, values are passed from the target property on the screen to the model. We mark the target attribute by enclosing the name in parentheses, (). This is a reverse one-way data binding from view to model. When the bindi

Attribute declarations-Exposing member variablesA property is a calling interface that a component exposes to the outside world, and the caller customizes the behavior and appearance of the component by setting different property values:Adding a property interface to a component in ANGULAR2 is straightforward, just declare the member variable of the component in the Properties property of the Component annotation:1 // 2@Component ({3 properties:[

3 [ng-switch-when]= " Variable >...4 5 ng-switch-when= "Constant" >...6 NgswitchdefaultThe Ngswitchdefault directive must be applied on the child template element of the Ngswitch directive, and when there is no ngswitchwhen instruction match, Ngswitch will display the contents of the template:1 [Ng-switch]= "..." >2 ng-switch-default= "" >...3 It is important to note that the Ngswitch series directives are ANGUALR2 preset directives that need to be used prior to use in the t

The whole new focus on ASP. NET core and angular2 is not so good. It's a big difference from abroad.I also encountered a lot of problems when I tried to do this integration. Finally, we can find out by consulting a lot of data. I think there will be similar people who have the same problem, so they recorded a video, interested can be followed step by point to do it again. You know.The video publishing address is:Because the computer fever slowed down

Angular2 pipeline Pipe and custom pipeline format data usage Example Analysis, angular2pipe This document describes how to use the Pipe of the Angular2 MPs queue and custom MPs queue format data. We will share this with you for your reference. The details are as follows: Pipeline (Pipe) can format the data according to the developer's wishes, and can also concatenate multiple pipelines. Pure Pipe and Impure

Time is limited, nonsense will not say more, directly on dry!Let me introduce you to a hole I met, if you also met, then congratulate you, you will find the answer: ANGULAR2/ANGULAR4 how to request to download the binary Excel file via the $http post method? (Angular1 self-Baidu)Problem Description:Back in the background is a binary Excel stream, with the request header as follows:access-control-allow-origin:*Cache-control:privateContent-disposition:a

Recently learned angular2, so from the official website Hero example began to learn. After a few twists and ends, this example is finished. Profits are shallow. Personal advice before you start learning An example, you can learn some concepts, modules, components, decorators ... that help you to write the logic of the code. Tell me about the problems I encountered during my studies:1. First attach the official Chinese tutorial Link: https://www.angula

First, prefaceSome time ago, the company has an app project needs to support different platforms, so the use of Ionic2 + Cordova + ANGULAR2, in the process of building the environment encountered a lot of problems, just recently have time to sort out.Second, the development environment constructionRefer to this site steps to build:Https://github.com/DonaldTdz/Ionic2QuickStartNote: Nodejs to install 6.0 +lts the latest version, do not install 8. Latest

In the ANGULAR2 framework of the general Interactive parsing JSON is to use the service, in fact, in addition to the service is still a lot of, today first write the simplest front-end data interactionHmm ~ ~First, I'll create the service directly under the app package.All rightWhat about here? Angular2 has a well-encapsulated HTTP interface directly referenced (to, here HTTP seems to have been abolished,,

Preface: Recently, due to the needs of the project, the need for in-depth study of ANGULAR2, although there has been research, but because of the lack of best practices, and then real to practice when still encounter a lot of key points. Experience to: "Consider 1000 times, better to do it once." Hesitate 10,000 times, try to practice once. ”。 In the ANGULAR2 related front-end project, there will be a i18n

Previously summed up the RC4 routing configuration, Angular2 upgrade RC5 after the addition of Ngmodule and Routermodule and many other components, so the current routing configuration is also changing a lot. 1. Most of the leading-by applications are to add a 2. Configure the Router App.routing.ts Import {Routes, routermodule} from ' @angular/router '; Const Approutes:routes = [ { path: ', redirectto: '/dashboard ', pathmat

tool under node, so the module loading mechanism also uses node mechanism, otherwise it will prompt the following error Error Ts1148:cannot compile modules unless the '--module ' flag is provided. Error Ts2307:cannot find module ' angular2/angular2 '. Error Ts2307:cannot find module ' angular2/http '. 2: Define compilation target Type "Target": "ES5"To conv