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inspect-js/is-shared-array-buffer

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Last release: 12/18/2024

This JavaScript module checks whether a given value is a JS SharedArrayBuffer. It’s designed to work across realms and iframes without relying on `instanceof` or mutable properties, and can be used for type guards in code that needs to distinguish SharedArrayBuffer values.

Project status

  • The source appears actively maintained, with a recent upstream push on 2026-01-13, and versioned updates through at least 2024-12-18.
  • The apparent updates cadence is low to moderate, with published version updates in 2022-04-02 (v1.0.2), 2024-02-21 (v1.0.3), and 2024-12-18 (v1.0.4).

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Recent updates

  • v1.0.4

    12/18/2024

    v1.0.4 updates the implementation to use the newer `call-bound` package and refreshes CI, typings tooling, and development dependencies. No release notes were provided, so this analysis focuses on what the code and project configuration actually changed.

  • v1.0.3

    2/21/2024

    v1.0.3 adds TypeScript declaration support for `is-shared-array-buffer` and expands the test suite to ensure TypedArray buffers are not misidentified as SharedArrayBuffer. The runtime implementation appears unchanged, but the release includes multiple packaging and tooling changes (npmignore autogeneration, TypeScript typechecking during lint/test).

    Features

  • v1.0.2

    4/2/2022

    Release v1.0.2 was published on 2022-04-02, but no release notes were provided by the publisher. As a result, there is no documented information about new features, fixes, breaking changes, or dependency updates in this release.