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=== tests/cases/compiler/parseInvalidNullableTypes.ts ===
function f1(a: string): a is ?string {
>f1 : (a: string) => a is string | null
>a : string
return true;
>true : true
}
function f2(a: string?) {}
>f2 : (a: string | null) => void
>a : string | null
function f3(a: number?) {}
>f3 : (a: number | null) => void
>a : number | null
function f4(a: ?string) {}
>f4 : (a: string | null) => void
>a : string | null
function f5(a: ?number) {}
>f5 : (a: number | null) => void
>a : number | null
function f6(a: string): ?string {
>f6 : (a: string) => string | null
>a : string
return true;
>true : true
}
const a = 1 as any?;
>a : any
>1 as any? : any
>1 : 1
const b: number? = 1;
>b : number | null
>1 : 1
const c = 1 as ?any;
>c : any
>1 as ?any : any
>1 : 1
const d: ?number = 1;
>d : number | null
>1 : 1
let e: unknown?;
>e : unknown
let f: never?;
>f : null
let g: void?;
>g : void | null
let h: undefined?;
>h : null | undefined
|
