类型数组的打字稿错误：- 无法调用其类型缺少调用签名的表达式

Question

我在 Angular5 中使用 typescript 创建了如下 getter-setter：-

  private _locations: Array<string> = [];

  constructor() { }

  /**
   * Getter locations
   * @return {Array<string>}
   */
  public get locations(): Array<string> {
    return this._locations;
  }

  /**
   * Setter locations
   * @param {Array<string>} value
   */
  public set locations(value: Array<string>) {
    this._locations = value;
  }

当我尝试访问方法位置时

this.signUpService.locations();

我收到一个错误：[ts] Cannot invoke an expression whose type lacks a call signature. Type 'string[]' has no compatible call signatures.

Answer 1

this.signUpService.locations();

getter 未被调用。他们只是得到

修复：

const value = this.signUpService.locations; 

This is just TypeScript saving you.