JavaScript实现笛卡尔积算法的简单示例

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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JS笛卡尔积算法</title>
</head>
<body>
<script>
function cartesianProductOf() {
  return Array.prototype.reduce.call(arguments,    function(a, b) {
  var ret = [];
    a.forEach(function(a) {
    b.forEach(function(b) {
    ret.push(a.concat([b]));
   });
  });
  return ret;
 }, [[]]);
}
console.log(cartesianProductOf(['1','3'],['a','b']))
</script>
</body>
</html>