javascript - How to customize when merge an array in Javascript
问题描述
i have put an item to array like this,
var items = [];
data['awal'].forEach(element => {
items.push(element.order_date);
});
var items_2 = [];
data['akhir'].forEach(element => {
items_2.push(element.order_date);
});
and want to merge that with the code like this,
var newArray = items.map((e, i) => e + items_2[i]);
console.log(newArray);
the result is like this,
["2018-11-05 11:22:352019-05-06 09:26:45", "2018-11-07 00:48:142019-05-07 11:02:33", "2018-11-08 13:12:072019-05-28 10:52:02", "2018-11-09 06:11:02undefined", "2018-11-10 06:48:14undefined", "2018-11-11 05:11:08undefined"]
But what if I want the mergain results like this
["05/11/2018#06/05/2019","07/11/2018#07/05/2019"] ...
and when is undefined automatically changes to 00/00/0000
How to do that in javascript?
解决方案
因为我们都是印度尼西亚人。我会帮你给你一个解决方案。:)
items = ["2018-11-05 11:22:35", "2018-11-07 00:48:14", "2018-11-09 00:48:14"];
items_2 = ["2019-05-06 09:26:45", "2019-05-07 11:02:33"];
var newArray = items.map((item, i) => {
let part1 = (item == undefined) ? '0000-00-00'.split("-"): item.split(" ")[0].split("-")
let part2 = (items_2[i] == undefined) ? '000-00-00'.split("-") : items_2[i].split(" ")[0].split("-");
let newDate1 = `${part1[2]}/${part1[1]}/${part1[0]}`;
let newDate2 = `${part2[2]}/${part2[1]}/${part2[0]}`;
return `${newDate1}#${newDate2}`;
});
console.log(newArray);
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