Retrieve the querystring parameter in angular2 using this.activeRoute.queryParams._value

While debugging in chrome, I came across this object:

this.activeRoute.queryParams._value

The constructor passes activeRoute as

private activeRoute: ActivatedRoute

Interestingly, when I'm in vs code and type this.activeRoute.queryParams, ._value does not appear as an available object. Is there a way to access that object?


Here is the code snippet that I eventually used.

this.activeRoute.queryParams.subscribe((params: Params) => {
    let context = params['context'];
    this.context = context;
  });

Also, remember to include Params in the import statement.

 import {Router, ActivatedRoute, Params} from '@angular/router';

Answer №1

Based on the insights shared in my commentary, here is an informative response.

The variable _value belongs to the private realm of queryParams. The specific type remains unidentified, but its exclusivity to the defining class inhibits external access.

In JavaScript, where public and private scopes are absent, there exists a theoretical possibility of accessing this member through your code. However, the TypeScript compiler will block the transpilation to JavaScript due to its enforcement of private scope rules.

To efficiently retrieve query string parameters, refer to this recommended solution: How to parse query parameters in Angular?

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