JS 操作 cookie

export function cookie(cookieName, cookieValue, day) {
  function readCookie (name: string) {
    const reg = new RegExp(`(^| )${name}=([^;]*)(;|$)`);
    const matched = document.cookie.match(reg);
    const arr = matched;
    if (arr) {
      return unescape(arr[2]);
    }
      return null;
  }
  function setCookie(name, value, time) {
    const Days = time || 30;
    const exp = new Date();
    exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);
    document.cookie = `${name}=${escape(value)};expires=${exp.toUTCString()}`;
  }
  if (cookieName && cookieValue) {
    // set cookie
    setCookie(cookieName, cookieValue, day);
    return cookieValue;
  } if (cookieName && cookieValue === null) {
    // delete cookie
    setCookie(cookieName, '', -1);
    return cookieValue;
  } if (cookieName) {
    // read cookie
    return readCookie(cookieName);
  }
  return null;
}

ts 版本

export function cookie(cookieName:string, cookieValue?:string, day?:number) {
  function readCookie (name: string) {
    const reg = new RegExp(`(^| )${name}=([^;]*)(;|$)`);
    const matched = document.cookie.match(reg);
    const arr = matched;
    if (arr) {
      return unescape(arr[2]);
    }
      return null;
  }
  function setCookie(name:string, value:string, time?:number) {
    const Days = time || 30;
    const exp = new Date();
    exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);
    document.cookie = `${name}=${escape(value)};expires=${exp.toUTCString()}`;
  }
  if (cookieName && cookieValue) {
    // set cookie
    setCookie(cookieName, cookieValue, day);
    return cookieValue;
  } if (cookieName && cookieValue === null) {
    // delete cookie
    setCookie(cookieName, '', -1);
    return cookieValue;
  } if (cookieName) {
    // read cookie
    return readCookie(cookieName);
  }
  return null;
}