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Dev.to
7/6/2026
The original title is "Building a dual-thumb range slider from scratch (no input type=range)"

The original title is "Building a dual-thumb range slider from scratch (no input type=range)"

Original: Building a dual-thumb range slider from scratch (no input type=range)

Short summary

Custom range slider using ~80 lines of vanilla JavaScript without <input type="range">. Covers value mapping, step snapping, dual-handle constraints, pointer events, and ARIA accessibility for cross-browser price filters and similar widgets.

  • •Two-way value mapping using percentages avoids resize listeners and layout thrashing
  • •Constraint enforcement prevents handles from crossing; unified pointer/click/keyboard interface
  • •Full accessibility support with ARIA labels and keyboard navigation (arrows, Shift+arrow, Home/End)

Generated with AI, which can make mistakes.

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