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- 'use strict';
- // http://www.ecma-international.org/ecma-262/6.0/#sec-object.is
- var numberIsNaN = function (value) {
- return value !== value;
- };
- module.exports = function is(a, b) {
- if (a === 0 && b === 0) {
- return 1 / a === 1 / b;
- }
- if (a === b) {
- return true;
- }
- if (numberIsNaN(a) && numberIsNaN(b)) {
- return true;
- }
- return false;
- };
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