Angular 5-不执行构造函数和ngOnInit

import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'app-example',
  template: '<p>Example Component</p>',
})
export class ExampleComponent implements OnInit {
  constructor() {
    if (condition) {
      // 执行构造函数的逻辑
    }
  }

  ngOnInit(): void {
    if (condition) {
      // 执行ngOnInit的逻辑
    }
  }
}

import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'app-example',
  template: '<p>Example Component</p>',
})
export class ExampleComponent implements OnInit {
  constructor() {
    this.asyncOperation().then(() => {
      // 执行构造函数的逻辑
    });
  }

  ngOnInit(): void {
    this.asyncOperation().then(() => {
      // 执行ngOnInit的逻辑
    });
  }

  asyncOperation(): Promise<void> {
    return new Promise<void>((resolve) => {
      // 异步操作的逻辑
      resolve();
    });
  }
}