JavaScript - Geolocation API

Overview

Estimated time: 15–20 minutes

The Geolocation API allows web apps to access the user's location (with permission).

Learning Objectives

• Request and use the user's location in JavaScript.
• Handle permissions and errors.

Prerequisites

• JavaScript - localStorage & sessionStorage

Getting the User's Location

navigator.geolocation.getCurrentPosition(
  function(position) {
    console.log(position.coords.latitude, position.coords.longitude);
  },
  function(error) {
    console.error(error);
  }
);

Common Pitfalls

• Requires user permission; may fail if denied or unsupported.

Summary

The Geolocation API is useful for location-based features, but always handle errors and permissions gracefully.