如何根据对象值在 JavaScript 中实现组合？

Question

I'm trying to write a function to give permutations given an array of data like this:

 var selectedData={
        selectedAccount:"a1,a2",
        selectedYear:"2019,2018",
        selectedProduct:"p1,p2",

    }

I'd like a result like:

[
    {
        selectedAccount: "a1",
        selectedYear: "2018",
        selectedProduct: "p1",
    },
    {
        selectedAccount: "a1",
        selectedYear: "2018",
        selectedProduct: "p2",
    },
    {
        selectedAccount: "a1",
        selectedYear: "2019",
        selectedProduct: "p1",
    },
    {
        selectedAccount: "a1",
        selectedYear: "2019",
        selectedProduct: "p2",
    },
    {
        selectedAccount: "a2",
        selectedYear: "2018",
        selectedProduct: "p1",
    },
    {
        selectedAccount: "a2",
        selectedYear: "2018",
        selectedProduct: "p2",
    },
    {
        selectedAccount: "a2",
        selectedYear: "2019",
        selectedProduct: "p1",
    },
    {
        selectedAccount: "a2",
        selectedYear: "2019",
        selectedProduct: "p2",
    },
]

I've been struggling with some type of recursive function no luck! can anyone give ideas to acheive above result

Thanks in advance

Answer 1

Just create nested for loops, like this:

 let selectedData = { selectedAccount: "a1,a2", selectedYear: "2019,2018", selectedProduct: "p1,p2", }; let result = []; for (let selectedAccount of selectedData.selectedAccount.split(",")) { for (let selectedYear of selectedData.selectedYear.split(",")) { for (let selectedProduct of selectedData.selectedProduct.split(",")) { result.push({ selectedAccount, selectedYear, selectedProduct }); } } } console.log(result);