Type Alias SignalBox<Type>

SignalBox: Type & SignalEntry<Type> & {
    toJSON(): Type;
    valueOf(): Type;
    value: Type;
    "[toPrimitive]"(hint: "string" | "number" | "default"): string | number;
}

Type Parameters

Type

Description

A signal entry that is also usable like its underlying primitive/object.

Interop Notes

toJSON() returns the raw value.
valueOf() returns the raw value.
Symbol.toPrimitive(hint):
- "number" → numeric coercion from the inner value
- "string" or "default" → string coercion from the inner value
The value getter/setter mirrors get()/set() for ergonomic usage.

Example

const count: SignalBox<number> = signal(0);

// Read
console.log(count.get()); // 0
console.log(count.value); // 0
console.log(+count); // 0

// Write
count.set(5);
count.value = 6;
count.update(v => v + 1); // 7

// JSON / string
console.log(`${count}`); // "7"
console.log(JSON.stringify(count)); // 7

// Reactivity
const unsub = count.sub(() => console.log("changed to", count.get()));
count.set(8); // triggers subscriber
unsub();