getComputedInstance()

Retrieves the underlying computed instance for a given property created with the computed decorator.

Example

class Counter {
  max = 100
  count = atom(0)

  @computed get remaining() {
    return this.max - this.count.value
  }
}

const c = new Counter()
const remaining = getComputedInstance(c, 'remaining')
remaining.value === 100 // true
c.count.set(13)
remaining.value === 87 // true

Signature

getComputedInstance<Obj, Prop>(obj: Obj, propertyName: Prop): Computed<Obj[Prop]>;

Type parameters

• Obj extends object
• Prop extends string | number | symbol

Parameters

Name	Type
obj	Obj
propertyName	Prop

Returns

Computed<Obj[Prop]>

Defined in: signia/src/Computed.ts:278