如何将离子3代码转换为离子4？ NavParms

Question

我创建了一个服务，在离子3中有一个名为“code”的参数我很困惑如何在离子4中更改相同的代码？

你如何抓住代码并将其推入离子4的火焰基地？

我有类似的服务，我在离子4，但我不知道如何拉它。我尝试了一堆方法，但它不起作用。

submitQuiz(questions: Questions){
  var code = this.navParams.get('code');
  console.log(code);
  for (var z = 0; z < this.i; z++) {
    console.log(questions[z]);
   this.questions$.push({
    code: code,
     question: questions[z]
   });

  }

这是我的服务

export interface Quiz {
    code: String;
  }
  export interface Users {
      email: String;
      password: String;
      nickname: String;
  }
  export interface Questions{
      code: String;
      question: any;
  }

Answer 1

试试这种方式：

  import { ActivatedRoute } from '@angular/router';

  constructor(
    private route: ActivatedRoute,
    ...
  ) { }

  submitQuiz(questions: Questions) {
    this.route.params.subscribe((params) => {
      const code = params.code;
      console.log(code);
      for (let z = 0; z < this.i; z++) {
        console.log(questions[z]);
        this.questions$.push({
          code: code,
          question: questions[z]
        });
      }
    });
  }

可以使用forEach（）改进循环

  submitQuiz(questions: Questions) {
    this.route.params.subscribe((params) => {
      const code = params.code;
      console.log(code);
      questions.forEach((question) => {
        this.questions$.push({
          code: code,
          question: question
        });
      });
    });
  }