24 lines
415 B
TypeScript
24 lines
415 B
TypeScript
// indexer in B is a subtype of indexer in A
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interface A {
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[s: string]: {
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a;
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};
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}
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interface B {
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[s: number]: {
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a;
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b;
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};
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}
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interface C extends A, B { } // ok
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interface D {
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[s: number]: {};
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}
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interface E extends A, D { } // error
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interface F extends A, D {
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[s: number]: {
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a;
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};
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} // ok because we overrode D's number index signature
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