角度7-布尔值始终为true

我在Angular7中有一个布尔值,用来在对象构造函数中设置一个值。布尔值作为参数传递,我在本地存储它。

但是,由于某些原因,布尔值始终计算为true。

以下是相关代码:

  ngOnInit() {
    this.id = this.route.snapshot.params['id'];
    this.showPersonal = this.route.snapshot.params['showPersonal'];
    console.log("ngOnInit, this.id: " +  this.id);
    console.log("ngOnInit, this.showPersonal: " +  this.showPersonal);
    // if showPersonal is true, workRelated i.e. last item in constructor, is false

    if (this.showPersonal){
      console.log("showPersonal is true, setting work related to false")
      this.showWorkRelated = false;
    }
    else {
      console.log("showPersonal is false, setting work related to true")
      this.showWorkRelated = true; 
    }

console.log("this.showWorkRelated: " + this.showWorkRelated)

这是输出:

todo.component.ts:28 ngOnInit, this.showPersonal: false
todo.component.ts:32 showPersonal is true, setting work related to false
todo.component.ts:40 this.showWorkRelated: false

我试过很多不同的方法,但总被认为是真的。这个密码怎么了?