21 lines
503 B
Text
21 lines
503 B
Text
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==== tests/cases/compiler/optionalPropertiesInClasses.ts (1 errors) ====
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interface ifoo {
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x?:number;
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y:number;
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}
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class C1 implements ifoo {
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public y:number;
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}
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class C2 implements ifoo { // ERROR - still need 'y'
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~~
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!!! Class 'C2' incorrectly implements interface 'ifoo':
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!!! Property 'y' is missing in type 'C2'.
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public x:number;
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}
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class C3 implements ifoo {
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public x:number;
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public y:number;
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}
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