v2.3.1

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This release updates the __spreadArray helper for TypeScript 4.4 to correctly operate on collections that are not "concat-spreadable" such as the DOM's NodeLists and HTMLCollections.

v2.3.0

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This release updates tslib to use TypeScript 4.4's upcoming __spreadArray helper which correctly preserves sparse array inputs (e.g. arrays containing "missing" elements like [1, 2, , 4]). This new version of __spreadArray is backwards-compatible and is often also faster. See https://github.com/microsoft/tslib/pull/151 for more details.

v2.2.0

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This release supports TypeScript 4.3's new functionality for ECMAScript private methods and accessors, and private static class members.

It does so by expanding the scope of __classPrivateFieldGet and __classPrivateFieldSet. See https://github.com/microsoft/tslib/pull/146 for more details.

v2.1.0

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This release adds a new __spreadArray helper which avoids side-effects compared to the now-deprecated __spreadArrays and __spread helpers. See https://github.com/microsoft/tslib/pull/133 for more details.

This release also provides a more-specific error message when extending from a type which is not a function and not null. See https://github.com/microsoft/tslib/pull/138 for more details.

v2.0.3

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Full discussion in the webpack issue

v2.0.2

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This release adds support for using tslib in Node using esmodule imports, further context in #​126 and the related issues.

v2.0.1

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1. Use Object.prototype.hasOwnProperty.call.
2. Skip default when iterating exports in __importStar.
3. Shorter parameter name in __exportStar.

v2.0.0

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This release changes __exportStar and __importStar to use __createBinding which is incompatible with versions of TypeScript older than 3.9 (i.e. 3.8 and below).