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=== tests/cases/compiler/instanceofNarrowReadonlyArray.ts ===
// @strict
function narrow(x: readonly number[] | number): readonly number[] {
>narrow : Symbol(narrow, Decl(instanceofNarrowReadonlyArray.ts, 0, 0))
>x : Symbol(x, Decl(instanceofNarrowReadonlyArray.ts, 2, 16))
if (x instanceof Array) {
>x : Symbol(x, Decl(instanceofNarrowReadonlyArray.ts, 2, 16))
>Array : Symbol(Array, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
return x;
>x : Symbol(x, Decl(instanceofNarrowReadonlyArray.ts, 2, 16))
} else {
return [x];
>x : Symbol(x, Decl(instanceofNarrowReadonlyArray.ts, 2, 16))
}
}
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