18 lines
846 B
TypeScript
18 lines
846 B
TypeScript
// Copyright 2016-2021, Pulumi Corporation. All rights reserved.
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// Confirm that Pulumi no longer forces the `target` `compilerOptions` in `tsconfig.json` to be `es6`.
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//
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// When `es6` is the target, if there isn't a version of the `@types/node` package available
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// that declares `Array.prototype.includes`, using `includes` will result in a compiler error:
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//
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// error TS2339: Property 'includes' does not exist on type 'number[]'.
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//
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// This test includes a resolution to force the use of an earlier version of `@types/node` that
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// does not declare `Array.prototype.includes` (because it's a transitive dependency) and
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// sets the `target` in `tsconfig.json` to `es2016`, which provides a declaration for `includes`.
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// The program should run without any compiler errors.
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if ([1, 2, 3].includes(1)) {
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console.log("hello world");
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}
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