@ryanuo/utils/dist/lib/common/date.mjs

提供多种实用工具函数，涵盖算法、浏览器操作、网络请求等多个领域

import date from "dayjs";
import { isDate, isFunction } from "./is.mjs";
export function dateFormat(date2, fmt = "YYYY-MM-dd") {
  if (!isDate(date2))
    throw new TypeError("Parameter must be a valid Date.");
  const year = date2.getFullYear().toString();
  const padLengths = {
    Y: 4,
    y: 2,
    M: 2,
    d: 2,
    H: 2,
    h: 2,
    m: 2,
    s: 2,
    S: 3,
    q: 1
  };
  const opt = {
    "Y+": () => year,
    "y+": (matched) => year.slice(-matched.length),
    "M+": (date2.getMonth() + 1).toString(),
    "d+": date2.getDate().toString(),
    "H+": date2.getHours().toString(),
    "h+": () => {
      const hour = date2.getHours();
      return (hour % 12 || 12).toString();
    },
    "m+": date2.getMinutes().toString(),
    "s+": date2.getSeconds().toString(),
    "q+": Math.floor((date2.getMonth() + 3) / 3).toString(),
    "S+": date2.getMilliseconds().toString()
  };
  let matchRes;
  for (const k in opt) {
    matchRes = fmt.match(new RegExp(k, "g"));
    matchRes?.forEach((matchedItem) => {
      const placeholder = k.charAt(0);
      const padLength = padLengths[placeholder] || matchedItem.length;
      const value = opt[k];
      const replacement = isFunction(opt[k]) ? value(matchedItem) : value;
      fmt = fmt.replace(
        matchedItem,
        replacement.toString().padStart(
          Math.max(matchedItem.length, padLength),
          "0"
        )
      );
    });
  }
  return fmt;
}
export const dayjs = date;