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    is-shared-array-buffer

    1.0.2 • Public • Published

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    Is this value a JS SharedArrayBuffer? This module works cross-realm/iframe, does not depend on instanceof or mutable properties, and despite ES6 Symbol.toStringTag.

    Example

    var assert = require('assert');
    var isSharedArrayBuffer = require('is-shared-array-buffer');
    
    assert(!isSharedArrayBuffer(function () {}));
    assert(!isSharedArrayBuffer(null));
    assert(!isSharedArrayBuffer(function* () { yield 42; return Infinity; });
    assert(!isSharedArrayBuffer(Symbol('foo')));
    assert(!isSharedArrayBuffer(1n));
    assert(!isSharedArrayBuffer(Object(1n)));
    
    assert(!isSharedArrayBuffer(new Set()));
    assert(!isSharedArrayBuffer(new WeakSet()));
    assert(!isSharedArrayBuffer(new Map()));
    assert(!isSharedArrayBuffer(new WeakMap()));
    assert(!isSharedArrayBuffer(new WeakRef({})));
    assert(!isSharedArrayBuffer(new FinalizationRegistry(() => {})));
    assert(!isSharedArrayBuffer(new ArrayBuffer()));
    
    assert(isSharedArrayBuffer(new SharedArrayBuffer()));
    
    class MySharedArrayBuffer extends SharedArrayBuffer {}
    assert(isSharedArrayBuffer(new MySharedArrayBuffer()));

    Tests

    Simply clone the repo, npm install, and run npm test

    Install

    npm i is-shared-array-buffer

    DownloadsWeekly Downloads

    17,569,352

    Version

    1.0.2

    License

    MIT

    Unpacked Size

    11.9 kB

    Total Files

    10

    Last publish

    Collaborators

    • ljharb