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https://github.com/react/react-native-devtools-frontend.git
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Mathias Bynens
779b5ea094
DISABLE_THIRD_PARTY_CHECK=updating node_modules deps Change-Id: I37d4670cf18e26e8caa8a5b1ca19c8f187244bac Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2259851 Commit-Queue: Mathias Bynens <mathias@chromium.org> Auto-Submit: Mathias Bynens <mathias@chromium.org> Reviewed-by: Tim van der Lippe <tvanderlippe@chromium.org>
is-callable 
Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.
Example
var isCallable = require('is-callable');
var assert = require('assert');
assert.notOk(isCallable(undefined));
assert.notOk(isCallable(null));
assert.notOk(isCallable(false));
assert.notOk(isCallable(true));
assert.notOk(isCallable([]));
assert.notOk(isCallable({}));
assert.notOk(isCallable(/a/g));
assert.notOk(isCallable(new RegExp('a', 'g')));
assert.notOk(isCallable(new Date()));
assert.notOk(isCallable(42));
assert.notOk(isCallable(NaN));
assert.notOk(isCallable(Infinity));
assert.notOk(isCallable(new Number(42)));
assert.notOk(isCallable('foo'));
assert.notOk(isCallable(Object('foo')));
assert.ok(isCallable(function () {}));
assert.ok(isCallable(function* () {}));
assert.ok(isCallable(x => x * x));
Tests
Simply clone the repo, npm install, and run npm test