Real-World Dataset (50,000 Markers)

This example demonstrates extreme-scale clustering by loading 50,000 real address points 5 times, resulting in 250,000 total markers. Shows the plugin's maximum performance capabilities with chunked loading and a progress bar.

let markers = new L.MarkerClusterGroup({
  chunkedLoading: true,
  chunkInterval: 200,
  chunkDelay: 50
});

// Load 50,000 markers 5 times (250,000 total) with progress tracking
markers.addLayers(markerArray);

Features:

• 250,000 markers – stress test dataset
• Chunked loading prevents UI freeze
• Progress bar shows loading status
• Maintains smooth performance
• Full clustering functionality

Tip: Watch the progress bar as markers load in batches to keep the browser responsive.