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tests/cases/compiler/defaultBestCommonTypesHaveDecls.ts(2,6): error TS2339: Property 'length' does not exist on type '{}'.
tests/cases/compiler/defaultBestCommonTypesHaveDecls.ts(5,6): error TS2339: Property 'length' does not exist on type 'Object'.
tests/cases/compiler/defaultBestCommonTypesHaveDecls.ts(8,24): error TS2345: Argument of type '""' is not assignable to parameter of type '1'.
tests/cases/compiler/defaultBestCommonTypesHaveDecls.ts(9,27): error TS2339: Property 'length' does not exist on type 'number'.
tests/cases/compiler/defaultBestCommonTypesHaveDecls.ts(13,28): error TS2339: Property 'length' does not exist on type 'number'.
==== tests/cases/compiler/defaultBestCommonTypesHaveDecls.ts (5 errors) ====
var obj1: {};
obj1.length;
~~~~~~
!!! error TS2339: Property 'length' does not exist on type '{}'.
var obj2: Object;
obj2.length;
~~~~~~
!!! error TS2339: Property 'length' does not exist on type 'Object'.
function concat<T>(x: T, y: T): T { return null; }
var result = concat(1, ""); // error
~~
!!! error TS2345: Argument of type '""' is not assignable to parameter of type '1'.
var elementCount = result.length;
~~~~~~
!!! error TS2339: Property 'length' does not exist on type 'number'.
function concat2<T, U>(x: T, y: U) { return null; }
var result2 = concat2(1, ""); // result2 will be number|string
var elementCount2 = result.length;
~~~~~~
!!! error TS2339: Property 'length' does not exist on type 'number'.
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