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The linkStore is the single source for input-slot connectivity. Readers use node.isInputConnected / node.getInputLink or the slotLinks input helpers; NodeInputSlot.link is a deprecation-telemetry accessor: reads warn and return the store-derived id, writes warn naming connect()/disconnectInput() and are ignored. Serialization derives inputs[].link from the store; wire format unchanged. Store re-keying is authoritative: moving a registered link evicts any incumbent under the new key, so slot permutations cannot drop links; first-wins placement remains only for load-time registration, which duplicate-link dedup depends on. dynamicWidgets rebuilds capture one at-rest slot-to-link snapshot and reconcile once at the end. fixLinkInputSlots is replaced by realignInputLinkSlots inside LGraph.configure, reading the effective (possibly deduplicated-clone) node data. disconnectOutput's duplicated branches collapse into one per-link loop that removes the store entry before onConnectionsChange fires. 'link' in slot discriminators are deleted in favor of direction threading; _setConcreteSlots writes wrappers back into node inputs/outputs so identity-based lookups hold; addInput/addOutput drop legacy link/links keys from extra_info. First-party code no longer touches either deprecated mirror.
Scripts Directory Documentation
This directory contains TypeScript code inherited from the legacy ComfyUI JavaScript frontend project. The code has been migrated from JavaScript to TypeScript while maintaining compatibility with the original functionality.
When implementing new features, prefer using the new Vue3 system over the legacy scripts.
Key Components
ComfyApi (api.ts)
Main API client class that handles communication with the ComfyUI backend. Provides methods for:
- Queue management
- Model operations
- Extension handling
- WebSocket communication
- User data management
ComfyApp (app.ts)
Core application class that manages:
- Graph manipulation
- Node management
- Canvas interactions
- Extension system
- Workflow state
UI Components (ui/)
Collection of reusable UI components including:
- Buttons and button groups
- Popups and dialogs
- Draggable lists
- Image previews
- Menu system
- Settings dialog
Integration with Vite
All TypeScript exports are shimmed through Vite configuration to maintain compatibility with the legacy JavaScript codebase. The shimming logic can be found in vite.config.mts.
Legacy Compatibility
This codebase maintains compatibility with the original ComfyUI Legacy Frontend while providing TypeScript type safety and modern development features.
For users wanting to fall back to the legacy frontend, use the command line argument:
--front-end-version Comfy-Org/ComfyUI_legacy_frontend@latest