var concatMap = require('../');
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								var xs = [ 1, 2, 3, 4, 5, 6 ];
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								var ys = concatMap(xs, function (x) {
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								    return x % 2 ? [ x - 0.1, x, x + 0.1 ] : [];
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								});
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								console.dir(ys);
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