Use Angular's built-in services, such as $ http and $ location, to efficiently use angular
AngularJS provides many built-in services for us. These built-in services can easily implement some common functions. The following is a summary of commonly used built-in services in Angular.1. $ location service
$ Location is used to return the URL address of the current page. The sample code is as follows: var app =
Introduction: angular-smarty, angular JS tool that can automatically complete the UI
This article mainly introduces angular-smarty, an AngularJS tool that can automatically complete the UI, including the use of the isolation scope binding directive and promise. For more information, see
We recently added an Automatic completion function (Smarty) for our forum on
What is angular?Angularjs is a framework for developing dynamic Web applications. It allows you to use HTML as a template language and to make your application components clearer and more concise with extended HTML syntax. What makes it so innovative is that it reduces the amount of code through data binding and dependency injection, which is implemented via JavaScript on the browser side and is perfectly integrated with any server-side technology.Ang
In some cases your application might need to upload large amounts of data, such as files. Obviously for a good UX we should provide the user some feedback on the progress of the upload. Angular ' s HttpRequest object has a property reportProgress which allows us to do exactly. Let's see how.//Service:Import {injectable} from ' @angular/core '; import {Observable} from' Rxjs/observable 'Import {HttpClient, H
You need to define a to is able to use it elsewhere in your app as a TemplateRef . You can store these TemplateRef s in a Service and then access them the from any @Directive or in @Component your app.We want to create a service and a component together to store all the templates.ServiceImport {injectable, templateref} from "@angular/core"; @Injectable () Export class Templatesservice { New map();}Compoment:Import {Component, viewchild} from "@
In Angular. JS, the instruction reference template and instruction are described as attributes. angular. jstemplate
I. reference template
Commands can be simply understood as functions running on specific DOM elements. commands can extend the functions of these elements.
The command must take effect.
The value of ng-app is the same as the module name of the definition command:
angular.module('app',[])
Comp
Angular implements responsive forms and angular response forms
Introduction
Angular provides a total of three form implementation methods: Template-driven Forms (Template-driven Forms), Reactive Forms (responsive Forms), and Dynamic Forms (Dynamic Forms ). This article only describes responsive forms.
What is a responsive form? In fact, the idea is similar to tha
Angular. JS learning dependency injection $ injector details, angular. jsinjector
Preface
Before dependency injection (IoC), it is very simple and straightforward to create an Object in the program, that is, to create a new Object in the code, we create, maintain, modify, and delete objects on our own. That is to say, we control the entire lifecycle of objects until they are not referenced and recycled. It
1.MVC IntroductionModel-view-controller
A software architecture developed for programming languages in the the 1980s Smalltalk . The purpose of the MVC pattern is to implement a dynamic program design that simplifies the subsequent modification and expansion of the program, and makes it possible to reuse a part of the program. In addition, this mode makes the program structure more intuitive by simplifying the complexity. The software system is separated by the basic parts of itsel
By default, the response body doesn ' t contain all of the data that might is needed in your app. Your server might return some special header which you had to read explicitly. In such case we can use the { observe: ‘response’} configuration of the Angular HttpClient . Let ' s explore.Import {injectable} from ' @angular/core 'rxjs/observable 'httpresponse' @angular
By default, the new Angular Http client (introduced in v4.3.1 ) uses JSON as the data format for communicating with the Backe nd API. However, there might is situations where you could want to use some other format, like for text/plain fetching a CSV file. The Using the property of this responseType can is achieved quite easily.Import {injectable} from ' @angular/core 'rxjs/observable' @
Angular path and angular path
When writing a project, we will see the boot page to the boot page, and the boot page to the home page,
When we use angular framework to write such things, if we are not careful, we will encounter problems,
For example, you cannot find images on the boot page.
So how can we solve this problem?
First, we need to make it clear tha
Brief introductionAngular JS is a client-side MVC framework written in JavaScript, which brings significant changes to the industry, including innovative implementations of templating and bidirectional binding of data, which makes it powerful and easy to use. It can be used to help developers write single-page applications, especially for rich, Ajax-style applications with a large number of crud operations. Most developers believe that ANGULARJS significantly reduces the amount of code required
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
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