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x/ramda/test/without.js

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

describe('without', function() { it('returns an array not containing values in the first argument', function() { eq(R.without([1, 2], [1, 2, 1, 4, 5]), [4, 5]); });
it('can act as a transducer', function() { eq(R.into([], R.without([1]), [1]), []); });
it('has R.equals semantics', function() { function Just(x) { this.value = x; } Just.prototype.equals = function(x) { return x instanceof Just && R.equals(x.value, this.value); };
eq(R.without([0], [-0]).length, 1); eq(R.without([-0], [0]).length, 1); eq(R.without([NaN], [NaN]).length, 0); eq(R.without([[1]], [[1]]).length, 0); eq(R.without([new Just([42])], [new Just([42])]).length, 0); });});