signal()

Create a reactive value that triggers updates when changed.

Signature

function signal<T>(initialValue: T): Signal<T>

Parameters

Param	Type	Description
`initialValue`	`T`	The initial value

Returns

Signal<T> with:

Property	Type	Description
`.value`	`T`	Read or write (triggers reactivity)
`.peek()`	`T`	Read without tracking
`.set(value)`	`void`	Set a new value
`.update(fn)`	`void`	Update via function
`.subscribe(fn)`	`() => void`	Subscribe to changes, returns unsubscribe

Examples

import { signal } from "@whisq/core";

const count = signal(0);
count.value;              // 0 (read — triggers tracking)
count.value = 5;          // (write — triggers updates)
count.update(n => n + 1); // 6
count.peek();             // 6 (read — no tracking)