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x/ramda/test/identical.js

:ram: Practical functional Javascript
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var R = require('../source');var eq = require('./shared/eq');

describe('identical', function() { var a = []; var b = a; it('has Object.is semantics', function() { eq(R.identical(100, 100), true); eq(R.identical(100, '100'), false); eq(R.identical('string', 'string'), true); eq(R.identical([], []), false); eq(R.identical(a, b), true); eq(R.identical(undefined, undefined), true); eq(R.identical(null, undefined), false);
eq(R.identical(-0, 0), false); eq(R.identical(0, -0), false); eq(R.identical(NaN, NaN), true);
eq(R.identical(NaN, 42), false); eq(R.identical(42, NaN), false);
eq(R.identical(0, new Number(0)), false); eq(R.identical(new Number(0), 0), false); eq(R.identical(new Number(0), new Number(0)), false); });
});