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=== tests/cases/compiler/typeGuardNarrowsIndexedAccessOfKnownProperty5.ts ===
const a: { key?: { x?: number } } = {};
>a : { key?: { x?: number | undefined; } | undefined; }
>key : { x?: number | undefined; } | undefined
>x : number | undefined
>{} : {}
const aIndex = "key";
>aIndex : "key"
>"key" : "key"
if (a[aIndex] && a[aIndex].x) {
>a[aIndex] && a[aIndex].x : number | undefined
>a[aIndex] : { x?: number | undefined; } | undefined
>a : { key?: { x?: number | undefined; } | undefined; }
>aIndex : "key"
>a[aIndex].x : number | undefined
>a[aIndex] : { x?: number | undefined; }
>a : { key?: { x?: number | undefined; } | undefined; }
>aIndex : "key"
>x : number | undefined
a[aIndex].x // number
>a[aIndex].x : number
>a[aIndex] : { x?: number | undefined; }
>a : { key?: { x?: number | undefined; } | undefined; }
>aIndex : "key"
>x : number
}
const b: { key: { x?: number } } = { key: {} };
>b : { key: { x?: number;}; }
>key : { x?: number | undefined; }
>x : number | undefined
>{ key: {} } : { key: {}; }
>key : {}
>{} : {}
const bIndex = "key";
>bIndex : "key"
>"key" : "key"
if (b[bIndex].x) {
>b[bIndex].x : number | undefined
>b[bIndex] : { x?: number | undefined; }
>b : { key: { x?: number | undefined; }; }
>bIndex : "key"
>x : number | undefined
b[bIndex].x // number
>b[bIndex].x : number
>b[bIndex] : { x?: number | undefined; }
>b : { key: { x?: number | undefined; }; }
>bIndex : "key"
>x : number
}
interface Foo {
x: number | undefined;
>x : number | undefined
}
const c: Foo[] = [];
>c : Foo[]
>[] : never[]
const cIndex = 1;
>cIndex : 1
>1 : 1
if (c[cIndex].x) {
>c[cIndex].x : number | undefined
>c[cIndex] : Foo
>c : Foo[]
>cIndex : 1
>x : number | undefined
c[cIndex].x // number
>c[cIndex].x : number
>c[cIndex] : Foo
>c : Foo[]
>cIndex : 1
>x : number
}
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