dont use global variable
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@ -746,6 +746,7 @@ Ox.map = function(obj, fn) {
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var isObject = Ox.isObject(obj),
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ret = isObject ? {} : [];
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Ox.forEach(obj, function(val, key) {
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var v;
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if ((v = fn(val, key)) !== null) {
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ret[isObject ? key : ret.length] = v;
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}
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