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tests/cases/conformance/classes/propertyMemberDeclarations/memberFunctionDeclarations/instanceMemberAssignsToClassPrototype.ts(7,9): error TS2322: Type '() => void' is not assignable to type '(x: number) => number'.
Type 'void' is not assignable to type 'number'.
==== tests/cases/conformance/classes/propertyMemberDeclarations/memberFunctionDeclarations/instanceMemberAssignsToClassPrototype.ts (1 errors) ====
class C {
foo() {
C.prototype.foo = () => { }
}
bar(x: number): number {
C.prototype.bar = () => { } // error
~~~~~~~~~~~~~~~
!!! error TS2322: Type '() => void' is not assignable to type '(x: number) => number'.
!!! error TS2322: Type 'void' is not assignable to type 'number'.
C.prototype.bar = (x) => x; // ok
C.prototype.bar = (x: number) => 1; // ok
return 1;
}
}
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