Skip to main content

Function: getTypeCheckerIsTypeAssignableToResult()

getTypeCheckerIsTypeAssignableToResult(checker: Readonly<ts.TypeChecker>, source: Readonly<ts.Type>, target: Readonly<ts.Type>): boolean | undefined

Defined in: _internal/type-checker-compat.ts:73

Read checker.isTypeAssignableTo when the host TypeScript version provides it.

Parametersโ€‹

checkerโ€‹

Readonly<ts.TypeChecker>

TypeScript type checker.

sourceโ€‹

Readonly<ts.Type>

Candidate source type.

targetโ€‹

Readonly<ts.Type>

Candidate target type.

Returnsโ€‹

boolean | undefined

Assignability result when available; otherwise undefined.