19 lines
675 B
Plaintext
19 lines
675 B
Plaintext
tests/cases/compiler/inheritSameNamePropertiesWithDifferentOptionality.ts(9,11): error TS2320: Interface 'A' cannot simultaneously extend types 'C' and 'C2'.
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Named property 'x' of types 'C' and 'C2' are not identical.
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==== tests/cases/compiler/inheritSameNamePropertiesWithDifferentOptionality.ts (1 errors) ====
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interface C {
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x?: number;
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}
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interface C2 {
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x: number;
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}
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interface A extends C, C2 { // error
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~
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!!! error TS2320: Interface 'A' cannot simultaneously extend types 'C' and 'C2'.
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!!! error TS2320: Named property 'x' of types 'C' and 'C2' are not identical.
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y: string;
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} |