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https://github.com/react/react-native-devtools-frontend.git
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Peter Marshall
0b95ea162f
Breaking changes here https://github.com/mochajs/mocha/releases/tag/v8.0.0 seem fine. DISABLE_THIRD_PARTY_CHECK=Update Mocha Bug: chromium:1101784 Change-Id: Idc75c94f9a923e2b0ca13d1d1331540cb1c5d3a3 Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2279830 Reviewed-by: Tim van der Lippe <tvanderlippe@chromium.org> Commit-Queue: Peter Marshall <petermarshall@chromium.org>
is-set 
Is this value a JS Map? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Example
var isSet = require('is-set');
assert(!isSet(function () {}));
assert(!isSet(null));
assert(!isSet(function* () { yield 42; return Infinity; });
assert(!isSet(Symbol('foo')));
assert(!isSet(1n));
assert(!isSet(Object(1n)));
assert(!isSet(new Map()));
assert(!isSet(new WeakSet()));
assert(!isSet(new WeakMap()));
assert(isSet(new Set()));
class MySet extends Set {}
assert(isSet(new MySet()));
Tests
Simply clone the repo, npm install, and run npm test