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- // Based on https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
- function _objectIs(a, b) {
- // SameValue algorithm
- if (a === b) {
- // Steps 1-5, 7-10
- // Steps 6.b-6.e: +0 != -0
- return a !== 0 || 1 / a === 1 / b;
- } else {
- // Step 6.a: NaN == NaN
- return a !== a && b !== b;
- }
- }
- export default typeof Object.is === 'function' ? Object.is : _objectIs;
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