Function seal

Inspects or attaches sealed content on a value.

seal<T>(value: unknown, seal: symbol): T | undefined
Retrieves the content sealed on value under the given seal.
Type Parameters
- T
  The expected type of the sealed content
Parameters
- value: unknown
  The value to inspect
- seal: symbol
  The symbol identifying the seal
Returns T | undefined
The sealed content if value is sealed under seal; undefined otherwise
- Defined in common/deep.ts:304
seal<V>(value: V, seal: symbol, content: unknown): V
Seals content on value under the given seal.

Both the sealed clone and any object or array content are deep-frozen and branded at every depth, so immutable returns them unchanged: the result, its members, the content, and the content members all keep a stable identity across calls.
Type Parameters
- V
  The type of the value being sealed
Parameters
- value: V
  The value to seal
- seal: symbol
  The symbol identifying the seal
- content: unknown
  The content to seal on value
Returns V
The sealed value
- Defined in common/deep.ts:321