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Angular.js

Information Technology > Programming frameworks

Description

Angular is a powerful JavaScript framework developed by Google for building web applications. It provides a way to create reactive Single Page Applications (SPAs) in a clean and maintainable way. Angular uses TypeScript, a statically typed superset of JavaScript, which ensures higher security and robustness. It allows developers to build components, which are the building blocks of an application, and use services for sharing data and functionality across components. Angular also supports form handling, user input validation, and advanced features like lazy loading, server-side rendering, and state management with tools like NgRx. It comes with a command-line interface (CLI) for generating boilerplate code.

Stack

MEAN

Expected Behaviors

✎
LEVEL 1

Fundamental Awareness

At this level, individuals have a basic understanding of Angular and its architecture. They are familiar with TypeScript and the concept of Single Page Applications (SPA). They also understand the MVC design pattern. However, they may not be able to create or run an Angular application independently.

🌱
LEVEL 2

Novice

Novices can set up an Angular environment and create a basic Angular application. They understand components, directives, and modules, and can perform basic data binding and event binding. They can use built-in directives and implement basic routing and navigation.

🌍
LEVEL 3

Intermediate

Intermediate users can handle advanced component communication and use services and dependency injection. They can manage forms and validate them, understand observables and RxJS, and use HTTP clients for API calls. They can also use pipes for data transformation and implement intermediate routing and navigation.

⭐
LEVEL 4

Advanced

Advanced users can handle complex form validation and use observables and RxJS at an advanced level. They can manage state with NgRx, implement lazy loading and dynamic component loading, and use HTTP clients at an advanced level. They can also perform unit testing with Jasmine and Karma, and end-to-end testing with Protractor.

🏆
LEVEL 5

Expert

Experts can optimize performance, manage state with NgRx at an advanced level, and perform server-side rendering with Angular Universal. They can implement internationalization (i18n) and localization, use Angular CLI at an advanced level, create custom decorators and directives, and perform advanced unit testing and debugging. They can also strategize migration for new Angular versions.

Micro Skills

✎
LEVEL 1

Fundamental Awareness

What is Angular.js?
Knowledge of Component-Based Architecture
Understanding of Module System
Familiarity with Angular CLI
Awareness of Angular Libraries
Understanding of Basic TypeScript Syntax
Familiarity with TypeScript Data Types
Basic Understanding of Interfaces and Classes in TypeScript
Awareness of Generics in TypeScript
Understanding of SPA Concept
Awareness of Advantages and Disadvantages of SPA
Basic Knowledge of How SPA Works
Familiarity with Examples of SPA
Knowledge of Model-View-Controller Concept
Understanding of the Role of Each Part in MVC
Awareness of Benefits of Using MVC
Basic Familiarity with Implementing MVC in Web Development
🌱
LEVEL 2

Novice

Installing Node.js and npm
Installing Angular CLI
Creating a New Angular Project
Understanding Angular Project Structure
Creating Components
Creating Modules
Bootstrapping the App Module
Running the Angular Application
Understanding Component Lifecycle
Understanding Directives Types (Structural, Attribute)
Understanding the Role of Modules in Angular
Understanding One-Way Data Binding
Understanding Two-Way Data Binding
Implementing Event Binding
Using Structural Directives (ngIf, ngFor)
Using Attribute Directives (ngClass, ngStyle)
Configuring Routes
Linking to Routes
Understanding Router Outlet
Navigating to Routes Programmatically
🌍
LEVEL 3

Intermediate

@Input and @Output Decorators
ViewChild and ContentChild
Component Interaction through Services
Creating and Injecting Services
Hierarchical Injector System
ProvidedIn and Providers
Reactive and Template-driven Forms
Form Validation
Custom Validator Functions
Observable Streams
Creating and Subscribing to Observables
Operators like map, filter, switchMap
Route Parameters
Nested Routes
Route Guards
Making GET, POST Requests
Error Handling
Interceptors
Using Built-in Pipes
Creating Custom Pipes
Pure and Impure Pipes
⭐
LEVEL 4

Advanced

Implementing Reactive Forms
Form Group and Form Control Usage
Custom Validators Creation
Async Validators Implementation
Dynamic Form Generation
Creation of Custom Observables
Use of Subjects and Multicasting
Error Handling in Observables
Use of Higher-Order Observable Operators
Testing of Observables
Understanding of Redux Pattern
Store Creation and Configuration
Action Definition and Reducer Functions
Effects for Side-Effect Management
Selectors for Efficient State Querying
Configuration of Lazy Loaded Routes
Understanding of Angular Modules and Chunking
Dynamic Component Creation and Destruction
ComponentFactoryResolver Usage
ViewChild and ViewContainerRef Usage
Interceptors for Request and Response Manipulation
Error Handling in HTTP Requests
Use of HttpHeaders and HttpParams
Progress Events for File Uploads
Server-Sent Events Handling
Test Suites and Specs Writing
Use of Jasmine Matchers
Asynchronous Tests Handling
Component, Service, and Pipe Testing
Mocking Dependencies and Spy Functions
Protractor Setup and Configuration
Writing E2E Test Cases
Page Objects Usage
Asynchronous Operations Handling
Debugging of E2E Tests
🏆
LEVEL 5

Expert

Understanding of Change Detection Strategies
Use of Lazy Loading and Preloading Modules
Optimizing Angular Application Size with AOT Compilation
Profiling and Debugging Performance Issues
Understanding of Redux Pattern in Angular
Creating Actions, Reducers, Selectors and Effects
Managing Application State using Store
Testing NgRx Applications
Setting Up Angular Universal
Understanding of Server-Side Rendering Concepts
Building and Deploying Angular Universal Apps
Handling Common SSR Issues
Setting Up i18n and Localization
Translating Text Using i18n
Locale-Based Date, Number, Currency Formatting
Implementing Right-to-Left (RTL) Support
Generating Libraries with Angular CLI
Customizing Angular CLI Configuration
Using Angular CLI Schematics
Updating Angular CLI and Project Dependencies
Creating Custom Attribute Directives
Creating Custom Structural Directives
Creating Custom Decorators
Testing Custom Directives and Decorators
Writing Unit Tests for Components, Services, and Pipes
Debugging Unit Tests
Code Coverage Analysis
End-to-End Testing with Protractor
Understanding Angular Update Process
Using Angular Update Guide
Resolving Common Update Issues
Automating Updates with Angular CLI

Skill Overview

  • Expert3 years experience
  • Micro-skills125
  • Roles requiring skill3

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