15 lines
959 B
Plaintext
15 lines
959 B
Plaintext
tests/cases/compiler/contextualTypingOfLambdaReturnExpression.ts(5,16): error TS2339: Property 'length' does not exist on type 'number'.
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tests/cases/compiler/contextualTypingOfLambdaReturnExpression.ts(6,18): error TS2339: Property 'length' does not exist on type 'number'.
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==== tests/cases/compiler/contextualTypingOfLambdaReturnExpression.ts (2 errors) ====
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function callb(lam: (l: number) => void);
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function callb(lam: (n: string) => void);
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function callb(a) { }
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callb((a) => a.length); // Ok, we choose the second overload because the first one gave us an error when trying to resolve the lambda return type
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~~~~~~
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!!! error TS2339: Property 'length' does not exist on type 'number'.
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callb((a) => { a.length; }); // Error, we picked the first overload and errored when type checking the lambda body
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~~~~~~
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!!! error TS2339: Property 'length' does not exist on type 'number'. |