运算符 \'>\' 不能应用于类型 \'() => number\' 和 \'number\'

Question

我试图让这个 ngIf 在我的 html 文件中工作，它给了我这个错误，我不知道是什么导致了这个。有人可以解释一下吗？谢谢 运算符“>”不能应用于类型“() => number”和“number”。

```<td *ngIf = "boat.getBoatRating>35" > {{boat.getBoatName}} </td>```

我的班级模型

```export class BoatClass {
  private boatId: number;
  private boatName: string;
  private boatRating: number;

  constructor(boatId: number, boatName: string, boatRating: number) {
    this.boatId = boatId;
    this.boatName = boatName;
    this.boatRating = boatRating;
  }

  getBoatId(): number {
      return this.boatId;
    }
  getBoatName(): string {
        return "${this.boatName}";
      }
  getBoatRating(): number {
        return this.boatRating;
      }
}```

我的组件

```import { Component } from '@angular/core';
import { BoatClass } from "./models/boat-class.model";


@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'angp';
  
  boatArr: BoatClass[] = [
  new BoatClass(100, "Boat1", 30),
  new BoatClass(200, "Boat2", 32),
  new BoatClass(300, "Boat3", 34),
  new BoatClass(400, "Boat4", 37),
  ]
}```

Answer 1

响应：getBoatrating 是一个函数。你必须像这样获取它
<td *ngIf = "boat.getBoatRating()>35" > {{boat.getBoatName}} </td>