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tests/cases/compiler/lambdaParamTypes.ts(17,31): error TS2339: Property 'foo' does not exist on type '{ name: string; id: number; }'.
tests/cases/compiler/lambdaParamTypes.ts(18,31): error TS2339: Property 'foo' does not exist on type '{ name: string; id: number; }'.
tests/cases/compiler/lambdaParamTypes.ts(19,34): error TS2339: Property 'charAt' does not exist on type 'number'.
tests/cases/compiler/lambdaParamTypes.ts(20,36): error TS2339: Property 'toExponential' does not exist on type 'string'.
tests/cases/compiler/lambdaParamTypes.ts(21,34): error TS2339: Property 'charAt' does not exist on type 'number'.
tests/cases/compiler/lambdaParamTypes.ts(22,36): error TS2339: Property 'toExponential' does not exist on type 'string'.
==== tests/cases/compiler/lambdaParamTypes.ts (6 errors) ====
interface MyArrayWrapper<T> {
constructor(initialItems?: T[]);
doSomething(predicate: (x: T, y: T) => string): void;
}
declare function create<T>(initialValues?: T[]): MyArrayWrapper<T>;
var thing = create([{ name: "bob", id: 24 }, { name: "doug", id: 32 }]);
// Below should all be OK
thing.doSomething((x, y) => x.name.charAt(0)); // x.name should be string, so should be OK
thing.doSomething((x, y) => x.id.toExponential(0)); // x.id should be string, so should be OK
thing.doSomething((x, y) => y.name.charAt(0)); // x.name should be string, so should be OK
thing.doSomething((x, y) => y.id.toExponential(0)); // x.id should be string, so should be OK
// Below should all be in error
thing.doSomething((x, y) => x.foo); // no such property on x
~~~
!!! error TS2339: Property 'foo' does not exist on type '{ name: string; id: number; }'.
thing.doSomething((x, y) => y.foo); // no such property on y
~~~
!!! error TS2339: Property 'foo' does not exist on type '{ name: string; id: number; }'.
thing.doSomething((x, y) => x.id.charAt(0)); // x.id should be number, no charAt member
~~~~~~
!!! error TS2339: Property 'charAt' does not exist on type 'number'.
thing.doSomething((x, y) => x.name.toExponential(0)); // x.name should be string, no toExponential member
~~~~~~~~~~~~~
!!! error TS2339: Property 'toExponential' does not exist on type 'string'.
thing.doSomething((x, y) => y.id.charAt(0));
~~~~~~
!!! error TS2339: Property 'charAt' does not exist on type 'number'.
thing.doSomething((x, y) => y.name.toExponential(0));
~~~~~~~~~~~~~
!!! error TS2339: Property 'toExponential' does not exist on type 'string'.
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