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'use strict';
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;
};