Function assertJsonMap

assertJsonMap(
value: Optional<AnyJson>,
message?: string,
): asserts value is JsonMap
Narrows an AnyJson value to a JsonMap if it is type-compatible, or raises an error otherwise.
Parameters
- value: Optional<AnyJson>
  The value to test.
- Optionalmessage: string
  The error message to use if value is not type-compatible.
Returns asserts value is JsonMap

Throws
AssertionFailedError If the value was undefined.
- Defined in narrowing/assert.ts:202