Tips for properly utilizing GeolocationPosition in TypeScript

Our goal is to utilize the Geolocation API to access the user's location.

This particular code snippet appears to be functioning well:

if (navigator.geolocation) {
  navigator.geolocation.getCurrentPosition((position: GeolocationPosition) => console.log(position));
}

Despite no errors or warnings in VSCode, an issue arises with the Angular CLI displaying this error message:

Cannot find name 'GeolocationPosition'.
navigator.geolocation.getCurrentPosition((position: GeolocationPosition) => console.log(position));

The project makes use of the following technologies:

  • Angular 11.0.6
  • tslib 2.0.0
  • ts-node 8.3.0
  • tslint 6.1.0
  • typescript 4.0.2

Additionally, strict type checking is enabled within Angular CLI

What is the correct way to properly utilize this type and other types from the Geolocation API?

angulartypescriptw3c-geolocation

Answer №1

When using TypeScript in version 4.0.x, the typename is recognized as Position, but in version 4.1.x it seems to have been changed to GeolocationPosition. It's unclear why this change was made without any documentation explaining it. Here is the reference: .

I suggest updating to the most recent version of TypeScript (currently 4.2.3)

Answer №2

Utilizing the built-in Position type is recommended:

if (navigator.geolocation) {
  navigator.geolocation.getCurrentPosition((position: Position) => console.log(position));
}

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