Object.getOwnPropertyDescriptor, but accounts for IE's broken implementation.
Usage
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var gOPD = require('gopd'); var assert = require('assert');
if (gOPD) { assert.equal(typeof gOPD, 'function', 'descriptors supported'); // use gOPD like Object.getOwnPropertyDescriptor here } else { assert.ok(!gOPD, 'descriptors not supported'); }