在Angular中存储全局类型

import { Injectable } from '@angular/core';

@Injectable({
  providedIn: 'root'
})
export class DataService {
  globalType: any; // 全局类型

  constructor() { }
}

import { Component } from '@angular/core';
import { DataService } from './data.service';

@Component({
  selector: 'app-my-component',
  template: `
    <div>{{ globalType }}</div>
  `
})
export class MyComponent {
  globalType: any; // 组件中的全局类型

  constructor(private dataService: DataService) {
    this.globalType = dataService.globalType; // 获取全局类型
  }
}

import { NgModule } from '@angular/core';
import { DataService } from './data.service';

@NgModule({
  providers: [DataService]
})
export class AppModule { }