How to Build a 'Find Stores Near Me' Feature Using JavaScript Geolocation

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Developers can build a store locator feature using the browser's Geolocation API, which returns a user's latitude and longitude after requesting permission. The coordinates are then compared against stored location data using the Haversine formula, which calculates straight-line distance between two geographic points. Results are sorted by proximity to surface the nearest stores first. Since users may deny location access or use unsupported browsers, the implementation should include a fallback option such as ZIP code or address search. For production use at scale, straight-line distance calculations may need to be replaced with a routing service to provide accurate driving distances.

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