javascript-ui-math

JavaScript UI Math

Use this skill for numeric browser behavior that needs predictable edge-case handling. It helps avoid common JavaScript traps around coercion, precision, modulo behavior, rounding, randomization, and BigInt.

Quick Start

1. Read guidelines.md to select the smallest relevant file set.
2. Load references/ui-numbers/rules.md for implementation decisions.
3. Load references/ui-numbers/examples.md when editing code.
4. Use workflows/debug-ui-number-logic.md for multi-step derivation or debugging.

Contents

| Resource | Purpose |

|----------|---------|

| guidelines.md | Routes tasks to the right reference files |

| references/source-map.md | Book source and chapter/section traceability |

| references/ui-numbers/knowledge.md | Core concepts and terminology |

| references/ui-numbers/rules.md | Practical rules, guidelines, and exceptions |

| references/ui-numbers/examples.md | Bad/good examples and refactoring approach |

| references/ui-numbers/patterns.md | Reusable formula and implementation patterns |

| references/ui-numbers/checklist.md | Review checklist and red flags |

| workflows/debug-ui-number-logic.md | Step-by-step workflow |

Source

Derived from Math for Web Design by Paul McFedries, Chapter 2: Math basics for JavaScript.

Citations are tracked in references/source-map.md.