Chart.js Navigator Part 1 - Add a Mini Chart Selector (Brush Tool)

Learn to build an interactive navigator mini chart in Chart.js that functions as a brush tool selector, similar to advanced charting libraries like Highcharts. Set up a secondary chart to serve as a navigation tool, implement zoomable time series datasets, and establish visual connections between multiple charts for enhanced user interaction. Master the fundamentals of creating brush tool functionality including mini chart configuration, zoom and pan support, and responsive design principles that work across light and dark modes while maintaining mobile compatibility. This 11-minute tutorial represents the first installment in a comprehensive 5-part series focused on building a fully functional, zoomable dashboard using Chart.js exclusively.