SigPro is a high-performance micro-framework that updates the Real DOM surgically. No Virtual DOM, no unnecessary re-renders, and built-in Cleanup (memory cleanup).
| Function | Signature | Description |
|---|---|---|
$(val, key?) | (any, string?) => Signal | Creates a Signal. If key is provided, it persists in localStorage. |
$(fn) | (function) => Computed | Creates a Computed Signal that auto-updates when its dependencies change. |
$watch(fn) | (function) => stopFn | Automatic Mode: Tracks any signal touched inside. Returns a stop function. |
$watch(deps, fn) | (Array, function) => stopFn | Explicit Mode: Only runs when signals in deps change. Used for Cleanup. |
$html(tag, props, kids) | (string, obj, any) => Element | The low-level DOM factory. Attaches ._cleanups to every element. |
$if(cond, then, else?) | (Signal, fn, fn?) => Node | Reactive conditional. Automatically destroys the "else" branch memory. |
$for(list, itemFn) | (Signal, fn) => Node | Optimized list renderer. Manages individual item lifecycles. |
$router(routes) | (Array) => Element | Hash-based SPA router. Uses Explicit Watch to prevent memory leaks. |
$mount(node, target) | (any, string|Node) => Runtime | Entry point. Creates a root instance with .destroy() capabilities. |
SigPro provides PascalCase wrappers for all standard HTML5 tags (e.g., Div, Span, Button).
Tag({ attributes }, [children])| Pattern | Code Example | Behavior |
|---|---|---|
| Static | class: "text-red" | Standard HTML attribute string. |
| Reactive | disabled: isLoading | Updates automatically via internal $watch. |
| Two-way | $value: username | Binding Operator: Syncs input $\\leftrightarrow$ signal both ways. |
| Text | P({}, () => count()) | Updates text node surgically without re-rendering the P. |
| Boolean | hidden: isHidden | Toggles the attribute based on signal truthiness. |