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Object.is Polyfill
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| if (!Object.is) { | |
| Object.is = function ObjectIs(x, y) { | |
| if (x === y) { | |
| return x !== 0 || 1/x === 1/y | |
| } else { | |
| return x !== x && y !== y; | |
| } | |
| } | |
| } | |
| // frontend masters - DeepJavascript Foundations V3 - Kyle Simpson |
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