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tests/cases/conformance/salsa/test.js(4,5): error TS2339: Property 'config' does not exist on type 'typeof Vue'.
==== tests/cases/conformance/salsa/vue.js (0 errors) ====
export class Vue {}
export const config = { x: 0 };
==== tests/cases/conformance/salsa/test.js (1 errors) ====
import { Vue, config } from "./vue";
// Expando declarations aren't allowed on aliases.
Vue.config = {};
~~~~~~
!!! error TS2339: Property 'config' does not exist on type 'typeof Vue'.
new Vue();
// This is not an expando declaration; it's just a plain property assignment.
config.x = 1;
// This is not an expando declaration; it works because non-strict JS allows
// loosey goosey assignment on objects.
config.y = {};
config.x;
config.y;
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