48 lines
862 B
TypeScript
48 lines
862 B
TypeScript
//// [intersectionTypeInference.ts]
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function extend<T, U>(obj1: T, obj2: U): T & U {
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var result: T & U;
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obj1 = result;
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obj2 = result;
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result = obj1; // Error
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result = obj2; // Error
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return result;
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}
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var x = extend({ a: "hello" }, { b: 42 });
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var s = x.a;
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var n = x.b;
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interface A<T> {
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a: T;
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}
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interface B<U> {
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b: U;
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}
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function foo<T, U>(obj: A<T> & B<U>): T | U {
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return undefined;
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}
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var z = foo({ a: "hello", b: 42 });
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var z: string | number;
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//// [intersectionTypeInference.js]
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function extend(obj1, obj2) {
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var result;
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obj1 = result;
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obj2 = result;
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result = obj1; // Error
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result = obj2; // Error
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return result;
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}
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var x = extend({ a: "hello" }, { b: 42 });
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var s = x.a;
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var n = x.b;
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function foo(obj) {
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return undefined;
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}
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var z = foo({ a: "hello", b: 42 });
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var z;
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