js 数组之间的组合列表
let arr = [
[1, 2, 3],
[4, 5, 6]
];
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;
}, [[]]);
}
let allArr =cartesianProductOf(...arr)
console.log(allArr)