获取不同时间的函数

最新推荐文章于 2025-04-10 11:23:35 发布

原创最新推荐文章于 2025-04-10 11:23:35 发布

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#java #javascript #html

这段代码展示了如何在JavaScript中获取当前时间、一个月前的时间以及n个月前的时间。通过创建Date对象并进行时间操作，函数将日期格式化为YYYY-MM-DD的字符串。

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/**获取当前的时间 */
        currentTime() {
            let date = new Date();  //当天
            let year = date.getFullYear().toString();
            let month = date.getMonth() + 1;
            let day = date.getDate();
            month = month < 10 ? "0" + month : month.toString();
            day = day < 10 ? "0" + day : day.toString();
            let time =  `${year}-${month}-${day}`
            return time
        },

        /**默认获取一个月前 */
        beforeTime() {
            let date = new Date();  //当天
            let beforeTime = new Date(date.getTime() - 24 * 60 * 60 * 1000 * 30); //一个月前
            let beforeTimeYear = beforeTime.getFullYear().toString();
            let beforeTimeMonth = beforeTime.getMonth() + 1;
            let beforeTimeDay = beforeTime.getDate();
            beforeTimeMonth = beforeTimeMonth < 10 ? "0" + beforeTimeMonth :     beforeTimeMonth.toString();
            beforeTimeDay = beforeTimeDay < 10 ? "0" + beforeTimeDay : beforeTimeDay.toString();
            let time = beforeTimeYear + "-" + beforeTimeMonth + "-" + beforeTimeDay
            return time
        },
 /**获取几个月前的数据 */
    beforeTime(n) {
      console.log();
      let date = new Date()
      date.setMonth(date.getMonth() - n)
      date.toLocaleDateString()
      let y = date.getFullYear()
      let m = date.getMonth() + 1
      let month = date.getMonth() + 1
      m = month < 10 ? '0' + m : m.toString()
      let d = date.getDate()
      d = d < 10 ? '0' + d : d
      let time = y + '-' + m + '-' + d
      return time
    },