16 lines
576 B
Plaintext
16 lines
576 B
Plaintext
==== tests/cases/compiler/propertyParameterWithQuestionMark.ts (2 errors) ====
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class C {
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constructor(public x?) { }
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}
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// x should not be an optional property
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var v: C = {}; // Should fail
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~
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!!! Type '{}' is not assignable to type 'C':
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!!! Property 'x' is missing in type '{}'.
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var v2: { x? }
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v = v2; // Should fail
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~
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!!! Type '{ x?: any; }' is not assignable to type 'C':
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!!! Required property 'x' cannot be reimplemented with optional property in '{ x?: any; }'.
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var v3: { x } = new C; // Should succeed |