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=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment11.ts ===
let x: string | undefined;
>x : string | undefined
let d: string | undefined;
>d : string | undefined
d ?? (d = x ?? "x")
>d ?? (d = x ?? "x") : string
>d : string | undefined
>(d = x ?? "x") : string
>d = x ?? "x" : string
>d : string | undefined
>x ?? "x" : string
>x : string | undefined
>"x" : "x"
d.length;
>d.length : number
>d : string
>length : number
let e: string | undefined;
>e : string | undefined
e ??= x ?? "x"
>e ??= x ?? "x" : string
>e : string | undefined
>x ?? "x" : string
>x : string | undefined
>"x" : "x"
e.length
>e.length : number
>e : string
>length : number
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