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tests/cases/compiler/instanceofWithPrimitiveUnion.ts(2,9): error TS2358: The left-hand side of an 'instanceof' expression must be of type 'any', an object type or a type parameter.
tests/cases/compiler/instanceofWithPrimitiveUnion.ts(8,9): error TS2358: The left-hand side of an 'instanceof' expression must be of type 'any', an object type or a type parameter.
==== tests/cases/compiler/instanceofWithPrimitiveUnion.ts (2 errors) ====
function test1(x: number | string) {
if (x instanceof Object) {
~
!!! error TS2358: The left-hand side of an 'instanceof' expression must be of type 'any', an object type or a type parameter.
x;
}
}
function test2(x: (number | string) | number) {
if (x instanceof Object) {
~
!!! error TS2358: The left-hand side of an 'instanceof' expression must be of type 'any', an object type or a type parameter.
x;
}
}
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