Question

我需要按日期过滤数据。
为了做到这一点，我必须将日期转换为数字。
但我收到此 NaN 错误。

如何转换

Feb 01 2021 10:53:00am KST

进入

2021-02-01 10:53:00

或者有什么方法可以转换

Feb 01 2021 10:53:00am KST

直接编号？

Answer 1

看看Date.parse

这个在 Chrome 中解析 "Feb 01 2021 10:53:00"

const d = new Date("Feb 01 2021 10:53:00")
console.log(d)

所以让我们尝试更具体的

// We want YYYY-MO-DDTHH:MM:SS.MSC+hh:mm
const months = ["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"];
const pad = num => ("0"+num).slice(-2);

const dString = "Feb 01 2021 10:53:00am KST"; // assuming mmm dd yyyy hh:mm:ssxx KST where xx is am or pm

let [mmm,dd,yyyy,tString,tz] = dString.split(" ");

let  [_,hh,mm,ss,ampm] = tString.match(/(\d{2}):(\d{2}):(\d{2})(am|pm)/)

hh = pad(+hh + (ampm==="pm" ? 12 : 0));

const month = pad(months.indexOf(mmm)+1)

const newDString = `${yyyy}-${month}-${dd}T${hh}:${mm}:${ss}.000-09:00`
const date = new Date(newDString)
console.log(newDString,date)

转换数据格式（2021 年 2 月 1 日 10:53:00am KST => 2021-02-01 10:53:00am）

1 个答案: