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tests/cases/conformance/es2019/globalThisReadonlyProperties.ts(1,12): error TS2540: Cannot assign to 'globalThis' because it is a read-only property.
tests/cases/conformance/es2019/globalThisReadonlyProperties.ts(5,12): error TS2339: Property 'y' does not exist on type 'typeof globalThis'.
==== tests/cases/conformance/es2019/globalThisReadonlyProperties.ts (2 errors) ====
globalThis.globalThis = 1 as any // should error
~~~~~~~~~~
!!! error TS2540: Cannot assign to 'globalThis' because it is a read-only property.
var x = 1
const y = 2
globalThis.x = 3
globalThis.y = 4 // should error
~
!!! error TS2339: Property 'y' does not exist on type 'typeof globalThis'.
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