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tests/cases/conformance/salsa/a.js(9,8): error TS2339: Property 'y' does not exist on type '{}'.
tests/cases/conformance/salsa/a.js(11,1): error TS7053: Element implicitly has an 'any' type because expression of type '"z"' can't be used to index type '{}'.
Property 'z' does not exist on type '{}'.
tests/cases/conformance/salsa/a.js(16,10): error TS2339: Property 'b' does not exist on type '{}'.
tests/cases/conformance/salsa/a.js(18,3): error TS7053: Element implicitly has an 'any' type because expression of type '"c"' can't be used to index type '{}'.
Property 'c' does not exist on type '{}'.
==== tests/cases/conformance/salsa/a.js (4 errors) ====
// This test is asserting that a single property/element access
// on `this` is a special assignment declaration, but chaining
// off that does not create additional declarations. I’m not sure
// if it needs to be that way in JavaScript; the test simply
// ensures no accidental changes were introduced while allowing
// element access assignments to create declarations.
this.x = {};
this.x.y = {};
~
!!! error TS2339: Property 'y' does not exist on type '{}'.
this["y"] = {};
this["y"]["z"] = {};
~~~~~~~~~~~~~~
!!! error TS7053: Element implicitly has an 'any' type because expression of type '"z"' can't be used to index type '{}'.
!!! error TS7053: Property 'z' does not exist on type '{}'.
/** @constructor */
function F() {
this.a = {};
this.a.b = {};
~
!!! error TS2339: Property 'b' does not exist on type '{}'.
this["b"] = {};
this["b"]["c"] = {};
~~~~~~~~~~~~~~
!!! error TS7053: Element implicitly has an 'any' type because expression of type '"c"' can't be used to index type '{}'.
!!! error TS7053: Property 'c' does not exist on type '{}'.
}
const f = new F();
f.a;
f.b;
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