初学者的 10 个最佳 Angular 项目创意

如果你是一个新手 Angular 程序员，想要快速掌握 Angular 技术，并提升自己的编程能力，那么你需要一些实际项目来练习。

以下是 10 个适合初学者的 Angular 项目创意。

1. Todo 应用

一个简单的 Todo 应用是学习 Angular 的最好方法之一。你可以使用 Angular 和 Firebase 来实现一个完整的 Todo 应用。

代码实例：

````typescript
import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  template: `
  <form (ngSubmit)="addTodo()">
    <label for="new-todo">What needs to be done?</label>
    <input id="new-todo" [(ngModel)]="newTodoText" name="newTodoText">
    <button type="submit">Add Todo</button>
  </form>

  <ul>
    <li *ngFor="let todo of todos">{{todo}}</li>
  </ul>
  `
})
export class AppComponent {
  newTodoText = '';
  todos = [];

  addTodo() {
    this.todos.push(this.newTodoText);
    this.newTodoText = '';
  }
}

## 2. 简单的计算器

使用 Angular 5 实现一个简单的计算器应用。

代码实例：

```markdown
````typescript
import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  template: `
    <h1>Calculator</h1>
    <div>
      <label>Number 1 :</label>
      <input [(ngModel)]="number1" type="number">
    </div>

    <div>
      <label>Number 2 :</label>
      <input [(ngModel)]="number2" type="number">
    </div>

    <div>
      <button (click)="add()">Add</button>
    </div>

    <div>
      <label>Result: {{ result }}</label>
    </div>
  `
})
export class AppComponent {
  number1: number;
  number2: number;
  result: number;

  add() {
    this.result = this.number1 + this.number2;
  }
}

## 3. 去重应用

写一个可以去除字符串数组中重复元素的应用。

代码实例：

```markdown
````typescript
import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  template: `    
    <h2>Remove duplicate element from array and display</h2>

    <div>
        <h3>Input Array Element:</h3>
        <input [(ngModel)]="inputText" placeholder="Array Element">
        <button (click)="addToArray()">Add</button>
    </div>

    <div>
        <h3>Unique Element are:</h3>
        <ul>
            <li *ngFor="let element of uniqueElements">{{ element }}</li>
        </ul>
    </div>
  `
})
export class AppComponent {
    inputText: string;
    arrayElements: string[] = [];
    uniqueElements: string[] = [];

    addToArray() {
        if (this.inputText) {
            this.arrayElements.push(this.inputText.trim());
            this.uniqueElements = this.getUniqueElements();
            this.inputText = '';
        }
    }

    getUniqueElements(): any[] {
        return [...new Set(this.arrayElements)];
    }
}

## 4. Github 用户搜索

使用 Github API 实现一个可以搜索 Github 用户的应用。

代码实例：

```markdown
````typescript
import { Component } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Component({
  selector: 'app-root',
  template: `
    <h1>Search for Github Users</h1>
    <div>
      <input [(ngModel)]="searchTerm" placeholder="Search Term">
      <button (click)="search()">Search</button>
    </div>

    <div *ngFor="let user of users">
      <h3>{{ user.login }}</h3>
      <img [src]="user.avatar_url" width="100">
    </div>
  `
})
export class AppComponent {
  searchTerm: string;
  users = [];

  constructor(private http: HttpClient){}

  search() {
    this.http.get('https://api.github.com/search/users?q=' + this.searchTerm)
      .subscribe((response) => {
        this.users = response['items'];
      })
  }
}

## 5. 图片搜索

使用 Unsplash API 实现一个简单的图片搜索应用。

代码实例：

```markdown
````typescript
import { Component } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Component({
  selector: 'app-root',
  template: `
    <h1>Image Search</h1>
    <div>
      <input [(ngModel)]="searchTerm" placeholder="Search Term">
      <button (click)="search()">Search</button>
    </div>

    <div *ngFor="let image of images">
      <img [src]="image.urls.regular" width="300">
    </div>
  `
})
export class AppComponent {
  searchTerm: string;
  images = [];

  constructor(private http: HttpClient){}

  search() {
    this.http.get('https://api.unsplash.com/search/photos?query=' + this.searchTerm + '&client_id=YOUR_ACCESS_KEY')
      .subscribe((response) => {
        this.images = response['results'];
      })
  }
}

## 6. 聊天应用

使用 Socket.io 实现一个简单的聊天应用。

代码实例：

```markdown
````typescript
import { Component } from '@angular/core';
import * as io from 'socket.io-client';

@Component({
  selector: 'app-root',
  template: `
    <h1>Chat App</h1>
    <div>
      <input [(ngModel)]="message" placeholder="Enter Message">
      <button (click)="sendMessage()">Send</button>
    </div>

    <div *ngFor="let message of messages">
      {{ message }}
    </div>
  `
})
export class AppComponent {
  message: string;
  messages: string[] = [];
  private socket = io('localhost:3000');

  constructor() {
    this.socket.on('chat message', (msg) => {
      this.messages.push(msg);
    });
  }

  sendMessage() {
    this.socket.emit('chat message', this.message);
    this.message = '';
  }
}

## 7. 电影应用

使用 themoviedb API 实现一个电影列表应用。

代码实例：

```markdown
````typescript
import { Component } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Component({
  selector: 'app-root',
  template: `
    <h1>Movie App</h1>
    <div>
      <input [(ngModel)]="searchTerm" placeholder="Search Term">
      <button (click)="search()">Search</button>
    </div>

    <div *ngFor="let movie of movies">
      <h3>{{ movie.title }}</h3>
      <img [src]="'https://image.tmdb.org/t/p/w500' + movie.poster_path" width="200">
    </div>
  `
})
export class AppComponent {
  searchTerm: string;
  movies = [];

  constructor(private http: HttpClient){}

  search() {
    this.http.get('https://api.themoviedb.org/3/search/movie?api_key=YOUR_API_KEY&query=' + this.searchTerm)
      .subscribe((response) => {
        this.movies = response['results'];
      })
  }
}

## 8. 位置搜索应用

使用 Google Maps API 实现一个简单的位置搜索应用。

代码实例：

```markdown
````typescript
import { Component } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Component({
  selector: 'app-root',
  template: `
    <h1>Location Search</h1>
    <div>
      <input [(ngModel)]="searchTerm" placeholder="Search Term">
      <button (click)="search()">Search</button>
    </div>

    <div *ngFor="let location of locations">
      {{ location.formatted_address }}
    </div>
  `
})
export class AppComponent {
  searchTerm: string;
  locations = [];

  constructor(private http: HttpClient){}

  search() {
    this.http.get('https://maps.googleapis.com/maps/api/geocode/json?address=' + this.searchTerm + '&key=YOUR_API_KEY')
      .subscribe((response) => {
        this.locations = response['results'];
      })
  }
}

## 9. React 与 Angular 混合应用

使用 Angular 5 和 ReactJS 实现一个简单的混合应用。

代码实例：

```markdown
````typescript
import { Component } from '@angular/core';
importreact from 'react';
importReactDOM from 'react-dom';

class ReactComponent extends React.Component{
  render(){
    return (
      <div>
        <h1>Hello World</h1>
      </div>
    );
  }
}

@Component({
  selector: 'app-root',
  template: `
    <h1>Angular and React In One App!</h1>
    <div #ref></div>
  `
})
export class AppComponent {
  ngOnInit() {
    const ref = this.ref.nativeElement;
    ReactDOM.render(<ReactComponent />, ref);
  }
}

## 10. 监控网页性能

使用 Performance API 实现一个简单的网页性能监控应用。

代码实例：

```markdown
````typescript
import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  template: `
    <h1>Monitor Page Performance</h1>

    <div>
      <button (click)="start()">Start</button>
      <button (click)="end()">End</button>
    </div>

    <div>
      <h3>Loading Time: {{ loadingTime }}</h3>
    </div>
  `
})
export class AppComponent {
  startTime: number;
  endTime: number;
  loadingTime: number;

  start() {
    this.startTime = performance.now();
  }

  end() {
    this.endTime = performance.now();
    this.loadingTime = this.endTime - this.startTime;
  }
}

以上就是初学者的 10 个最佳 Angular 项目创意，希望对你有所帮助。