matmoul
07a4c533fb
Keep the calculator stack unlimited in the demo and only constrain the rendered stack view. Also restore the edit cursor position when pulling a value into the input from the stack.
10 lines
941 B
Markdown
10 lines
941 B
Markdown
# State
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- Core engine: `src/rpn-calculator.js`
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- Reference demo: `samples/calc-02/` (portrait-first HP48GX layout, compact mode/constants popups; Const button comes before Mode in the display row)
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- Important UI behavior: mode button shows the current angle mode; keyboard focus stays on the hidden input on desktop; clipboard paste is supported
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- Note: keep scrolling behavior in mind for the calc-02 demo when changing the stack/UI layout
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- Public API: `push`, `pop`, `clear`, `swap`, `remove`, `edit`, `isValidIndex`, `input`, `command`, `getOperationsByCategory`, `getConstants`, `listConstants`, `setConstant`, `removeConstant`, `hasConstant`
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- Config: `maxSize`, `base`, `angleMode`, `enabledCommands`
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- Commands: arithmetic, stack, trigonometry, constants `pi` and `e`; arithmetic includes `root`; constants can be added or removed dynamically through the core API
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- Exports: browser `window.RpnCalculator`, CommonJS `module.exports`
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