javascript - 将 Aug 19th 2018 转换为 08-19/2018-Javascript

Question

我想将日期字符串“Aug 19th 2018”转换为“mm-dd-yyyy”格式(不使用 moment.js) 我用过

d = new Date("Aug 19th 2018")

它会导致 NaN，因为它无法解析“19th”。如何实现这一目标？

Answer 1

创建自定义函数并将日期转换为所需格式

let dt = "Aug 19th 2018";


function convertDate(dt) {
  let newFormat = "";
  // a mapping of month name and numerical value
  let monthMapping = {
    jan:'01',
    feb: '02',
    mar: '03',
    april: '04',
    may: '05',
    june: '06',
    july: '07',
    aug: '08',
    sept: '09',
    oct: '10',
    nov: '11',
    dec: '12'
  }
  // split the input string into three pieces
  let splitDt = dt.split(" ");
  // from the first piece get the numerical month value from the above obhect
  let getMonth = monthMapping[splitDt[0].toLowerCase()];
  let date = parseInt(splitDt[1], 10)
  let year = splitDt[2]
  return `${getMonth}-${date}-${year}`
}

console.log(convertDate(dt))