javascript - 在 Javascript 中发现相同值时更新数组

Question

我有两个数组。如果找到相同的数据，我想用第一个数组数据更新第二个数组。这是我的第一个数组:

var namaFile = [
            {
                billingID: "90009388",
                customerID: "C20121121221327_249",
                name: "201409011141106_082895250262"
            },
            {
                billingID: "90009400",
                customerID: "7885000000007804",
                name: "201410201141125_08287045931"
            },
            {
                billingID: "90009388",
                customerID: "C20121121221327_249",
                name: "201410011171208_082895250262"
            }
        ];

这里是第二个数组:

var emailAddr = [
            {
                customerID: "C20121121221327_249",
                email: "fanjavaid@gmail.com"
            },
            {
                customerID: "7885000000007804",
                email: "arrosyad.fikri@sampoernatelekom.com"
            }
        ];

这是我的代码，但不起作用。

for (var i = 0; i < namaFile.length; i++) {
            var files = [];
            for (var j = 0; j < emailAddr.length; j++) {
                if (namaFile[i].customerID == emailAddr[j].customerID) {
                    files.push(namaFile[i].name);
                    emailAddr[j]['files'] = files;
                }
            }
        }

        console.log(emailAddr);

我的预期结果是这样的:

var emailAddr = [
            {
                customerID: "C20121121221327_249",
                email: "fanjavaid@gmail.com",
                files : [
                    "201409011141106_082895250262","201410011171208_082895250262"
                ]
            },
            {
                customerID: "7885000000007804",
                email: "arrosyad.fikri@sampoernatelekom.com",
                files : [
                    "201410201141125_08287045931"
                ]
            }
        ];

如何创建该结果？谢谢。

Answer 1

交换为(...){。 Example

for (var j = 0; j < emailAddr.length; j++) {
    var files = [];
    for (var i = 0; i < namaFile.length; i++) {
        if (namaFile[i].customerID == emailAddr[j].customerID) {
            files.push(namaFile[i].name);
            emailAddr[j]['files'] = files;
        }
    }
}