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//ÊÊÓñ¾ÎĵµES5ϵͳ°²×¿ JavaScriptÒýÇæRhino

const ʱ¼ä = {
/**
* »ñÈ¡µ±Ç°Ê±¼ä´Á
* @returns {number} ·µ»Øµ±Ç°µÄʱ¼ä´Á£¨ºÁÃ룩
* @example
* var timestamp = ʱ¼ä.µ±Ç°Ê±¼ä´Á();
* printl(timestamp); // Êä³öÀàËÆ: 1677649423000
*/
µ±Ç°Ê±¼ä´Á: function() {
return Date.now();
},

/**
* ¸ñʽ»¯Ê±¼äΪָ¶¨¸ñʽ
* @param {Date|number|string} date Òª¸ñʽ»¯µÄÈÕÆÚ£¬¿ÉÒÔÊÇDate¶ÔÏó¡¢Ê±¼ä´Á»òÈÕÆÚ×Ö·û´®
* @param {string} format Êä³ö¸ñʽ£¬Ä¬ÈÏΪ"YYYY-MM-DD HH:mm:ss"
* @returns {string|null} ³É¹¦·µ»Ø¸ñʽ»¯ºóµÄʱ¼ä×Ö·û´®£¬Ê§°Ü·µ»Ønull
* @example
* // ʾÀý1£º¸ñʽ»¯µ±Ç°Ê±¼ä
* var now = new Date();
* var str = ʱ¼ä.¸ñʽ»¯(now);
* printl(str); // Êä³ö: "2024-01-20 15:30:45"
*
* // ʾÀý2£º×Ô¶¨Òå¸ñʽ
* var str = ʱ¼ä.¸ñʽ»¯(new Date(), "YYYYÄêMMÔÂDDÈÕ");
* printl(str); // Êä³ö: "2024Äê01ÔÂ20ÈÕ"
*/
¸ñʽ»¯: function(date, format) {
try {
// ÉèÖÃĬÈϸñʽ
format = format || "YYYY-MM-DD HH:mm:ss";

// ²ÎÊýÑéÖ¤
if (!date) {
console.error("[ʱ¼ä.¸ñʽ»¯] ´íÎó£ºdate²ÎÊý䶨Òå");
return null;
}

// ת»»ÎªDate¶ÔÏó
var dateObj;
if (date instanceof Date) {
dateObj = date;
} else if (typeof date === 'number' || typeof date === 'string') {
dateObj = new Date(date);
} else {
console.error("[ʱ¼ä.¸ñʽ»¯] ´íÎó£ºdate²ÎÊýÀàÐͲ»ÕýÈ·");
return null;
}

// ÑéÖ¤ÈÕÆÚÊÇ·ñÓÐЧ
if (isNaN(dateObj.getTime())) {
console.error("[ʱ¼ä.¸ñʽ»¯] ´íÎó£ºÎÞЧµÄÈÕÆÚ");
return null;
}

// ¸ñʽ»¯º¯Êý
var formatMap = {
YYYY: dateObj.getFullYear(),
MM: String(dateObj.getMonth() + 1).padStart(2, '0'),
DD: String(dateObj.getDate()).padStart(2, '0'),
HH: String(dateObj.getHours()).padStart(2, '0'),
mm: String(dateObj.getMinutes()).padStart(2, '0'),
ss: String(dateObj.getSeconds()).padStart(2, '0'),
SSS: String(dateObj.getMilliseconds()).padStart(3, '0')
};

return format.replace(/YYYY|MM|DD|HH|mm|ss|SSS/g, function(match) {
return formatMap[match];
});
} catch (error) {
console.error("[ʱ¼ä.¸ñʽ»¯] ´íÎó£º" + error);
return null;
}
},

/**
* ¼ÆËãÁ½¸öÈÕÆÚÖ®¼äµÄʱ¼ä²î
* @param {Date|number|string} date1 µÚÒ»¸öÈÕÆÚ
* @param {Date|number|string} date2 µÚ¶þ¸öÈÕÆÚ
* @param {string} unit ·µ»ØµÄʱ¼äµ¥Î»£¬¿ÉÑ¡Öµ£ºyears, months, days, hours, minutes, seconds, milliseconds
* @returns {number|null} ³É¹¦·µ»Øʱ¼ä²î£¬Ê§°Ü·µ»Ønull
* @example
* // ʾÀý1£º¼ÆËãÁ½¸öÈÕÆÚÖ®¼äµÄÌìÊý²î
* var date1 = new Date('2024-01-01');
* var date2 = new Date('2024-02-01');
* var diff = ʱ¼ä.ʱ¼ä²î(date1, date2, 'days');
* printl(diff); // Êä³ö: 31
*
* // ʾÀý2£º¼ÆËãСʱ²î
* var diff = ʱ¼ä.ʱ¼ä²î(date1, date2, 'hours');
* printl(diff); // Êä³ö: 744
*/
ʱ¼ä²î: function(date1, date2, unit) {
try {
// ÉèÖÃĬÈϵ¥Î»
unit = unit || "milliseconds";

// ²ÎÊýÑéÖ¤
if (!date1 || !date2) {
console.error("[ʱ¼ä.ʱ¼ä²î] ´íÎó£ºÈÕÆÚ²ÎÊý䶨Òå");
return null;
}

// ת»»ÎªDate¶ÔÏó
var d1 = new Date(date1);
var d2 = new Date(date2);

// ÑéÖ¤ÈÕÆÚÊÇ·ñÓÐЧ
if (isNaN(d1.getTime()) || isNaN(d2.getTime())) {
console.error("[ʱ¼ä.ʱ¼ä²î] ´íÎó£ºÎÞЧµÄÈÕÆÚ");
return null;
}

// ¼ÆËãºÁÃë²îÖµ
var diff = Math.abs(d2.getTime() - d1.getTime());

// ¸ù¾Ýµ¥Î»×ª»»
var conversions = {
milliseconds: 1,
seconds: 1000,
minutes: 1000 * 60,
hours: 1000 * 60 * 60,
days: 1000 * 60 * 60 * 24,
months: 1000 * 60 * 60 * 24 * 30.436875, // ƽ¾ùÿÔÂÌìÊý
years: 1000 * 60 * 60 * 24 * 365.25 // ƽ¾ùÿÄêÌìÊý
};

if (!conversions[unit]) {
console.error("[ʱ¼ä.ʱ¼ä²î] ´íÎó£ºÎÞЧµÄʱ¼äµ¥Î»");
return null;
}

return Math.floor(diff / conversions[unit]);
} catch (error) {
console.error("[ʱ¼ä.ʱ¼ä²î] ´íÎó£º" + error);
return null;
}
}
};

// ʾÀý1£º»ñÈ¡µ±Ç°Ê±¼ä´Á
var timestamp = ʱ¼ä.µ±Ç°Ê±¼ä´Á();
printl("µ±Ç°Ê±¼ä´Á£º", timestamp);

// ʾÀý2£º¸ñʽ»¯µ±Ç°Ê±¼ä
var now = new Date();
var formattedDate = ʱ¼ä.¸ñʽ»¯(now);
printl("¸ñʽ»¯µ±Ç°Ê±¼ä£º", formattedDate);

// ʾÀý3£º×Ô¶¨Òå¸ñʽ»¯
var customFormat = ʱ¼ä.¸ñʽ»¯(now, "YYYYÄêMMÔÂDDÈÕ HHʱmm·ÖssÃë");
printl("×Ô¶¨Òå¸ñʽ£º", customFormat);

// ʾÀý4£º¼ÆËãʱ¼ä²î
var date1 = new Date('2024-01-01');
var date2 = new Date('2024-02-01');
var daysDiff = ʱ¼ä.ʱ¼ä²î(date1, date2, 'days');
printl("Ïà²îÌìÊý£º", daysDiff);

var hoursDiff = ʱ¼ä.ʱ¼ä²î(date1, date2, 'hours');
printl("Ïà²îСʱ£º", hoursDiff);

1. »ù´¡Ê±¼ä»ñÈ¡·½·¨

/**
 * »ñÈ¡µ±Ç°Ê±¼ä´Á
 */
µ±Ç°Ê±¼ä´Á: function() {
    return Date.now();
}

ÕâÊÇ×î»ù´¡µÄ·½·¨£¬·µ»Øµ±Ç°Ê±¼äµÄºÁÃ뼶ʱ¼ä´Á¡£³£ÓÃÓڼǼʱ¼äµã»ò¼ÆËãʱ¼ä²î¡£

/**
 * »ñÈ¡µ±Ç°Ê±¼ä
 */
µ±Ç°Ê±¼ä: function() {
    return new Date();
}

·µ»Øµ±Ç°µÄDate¶ÔÏ󣬿ÉÒÔÓÃÓÚºóÐøµÄʱ¼ä´¦Àí¡£

2. ʱ¼äµÈ´ýºÍÐÝÃß·½·¨

/**
 * ÐÝÃßÖ¸¶¨µÄºÁÃëÊý£¨Í¬²½·½Ê½£©
 */
ÐÝÃß: function(ms) {
  try {
    // ²ÎÊýÑéÖ¤
    if (typeof ms !== 'number' || ms < 0) {
      console.error("[ʱ¼ä.ÐÝÃß] ´íÎ󣺲ÎÊý±ØÐëÊǷǸºÊý");
      return;
    }

    var start = new Date().getTime();
    while (new Date().getTime() < start + ms) {
      // ¿ÕÑ­»·µÈ´ý
    }
  } catch (error) {
    console.error("[ʱ¼ä.ÐÝÃß] ´íÎó£º" + error);
  }
}

ÕâÊÇÒ»¸öͬ²½µÄÐÝÃß·½·¨£¬»á×èÈûÖ´ÐÐÖ¸¶¨µÄºÁÃëÊý¡£×¢Ò⣺Õâ»á×èÈûÖ÷Ï̡߳£

/**
 * µÈ´ýÖ¸¶¨Ê±¼ä£¨Òì²½·½Ê½£©
 */
µÈ´ýÖ¸¶¨Ê±¼ä: function(ms) {
  try {
    if (typeof ms !== 'number' || ms < 0) {
      console.error("[ʱ¼ä.µÈ´ýÖ¸¶¨Ê±¼ä] ´íÎó£ºms±ØÐëÊǷǸºÊý");
      return Promise.reject("ms±ØÐëÊǷǸºÊý");
    }

    return new Promise(function(resolve) {
      setTimeout(resolve, ms);
    });
  } catch (error) {
    console.error("[ʱ¼ä.µÈ´ýÖ¸¶¨Ê±¼ä] ´íÎó£º" + error);
    return Promise.reject(error);
  }
}

ÕâÊÇÒì²½°æ±¾µÄµÈ´ý£¬·µ»ØPromise£¬²»»á×èÈûÖ÷Ï̡߳£ÍƼöʹÓÃÕâ¸ö·½·¨¶ø²»ÊÇÐÝÃß¡£

3. ʱ¼ä¸ñʽ»¯ºÍת»»

/**
 * ¸ñʽ»¯Ê±¼äΪָ¶¨¸ñʽ
 */
¸ñʽ»¯: function(date, format) {
  try {
    format = format || "YYYY-MM-DD HH:mm:ss";

    // ... ²ÎÊýÑéÖ¤ ...

    var formatMap = {
      YYYY: dateObj.getFullYear(),
      MM: String(dateObj.getMonth() + 1).padStart(2, '0'),
      DD: String(dateObj.getDate()).padStart(2, '0'),
      HH: String(dateObj.getHours()).padStart(2, '0'),
      mm: String(dateObj.getMinutes()).padStart(2, '0'),
      ss: String(dateObj.getSeconds()).padStart(2, '0'),
      SSS: String(dateObj.getMilliseconds()).padStart(3, '0')
    };

    return format.replace(/YYYY|MM|DD|HH|mm|ss|SSS/g, function(match) {
      return formatMap[match];
    });
  } catch (error) {
    console.error("[ʱ¼ä.¸ñʽ»¯] ´íÎó£º" + error);
    return null;
  }
}

Õâ¸ö·½·¨¿ÉÒÔ½«ÈÕÆÚ¸ñʽ»¯ÎªÖ¸¶¨µÄ×Ö·û´®¸ñʽ¡£Ö§³ÖµÄ¸ñʽ±ê¼Ç£º

  • YYYY: Äê·Ý
  • MM: Ô·ݣ¨01-12£©
  • DD: ÈÕÆÚ£¨01-31£©
  • HH: Сʱ£¨00-23£©
  • mm: ·ÖÖÓ£¨00-59£©
  • ss: Ã루00-59£©
  • SSS: ºÁÃ루000-999£©

4. ʱ¼ä×é¼þ»ñÈ¡

»ñÈ¡Äê: function(date) {
  try {
    var dateObj = date ? new Date(date) : new Date();
    return dateObj.getFullYear();
  } catch (error) {
    console.error("[ʱ¼ä.»ñÈ¡Äê] ´íÎó£º" + error);
    return null;
  }
}

ÀàËƵĻ¹ÓлñÈ¡Ô¡¢»ñȡʱ¡¢»ñÈ¡·Ö¡¢»ñÈ¡Ãë¡¢»ñÈ¡ºÁÃë·½·¨£¬ËüÃǶ¼£º

  • ½ÓÊÜ¿ÉÑ¡µÄÈÕÆÚ²ÎÊý£¬²»´«ÔòʹÓõ±Ç°Ê±¼ä
  • ·µ»Ø¶ÔÓ¦µÄʱ¼ä×é¼þ
  • °üº¬´íÎó´¦Àí

5. ¸ß¼¶¹¦ÄÜ

/**
 * µ¹¼ÆʱÃë
 */
µ¹¼ÆʱÃë: function(seconds, callback, doneCallback) {
  try {
    var remainingSeconds = seconds;

    // Á¢¼´Ö´ÐÐÒ»´Î»Øµ÷
    if (typeof callback === 'function') {
      callback(remainingSeconds);
    }

    var intervalId = setInterval(function() {
      remainingSeconds--;

      if (typeof callback === 'function') {
        callback(remainingSeconds);
      }

      if (remainingSeconds <= 0) {
        clearInterval(intervalId);
        if (typeof doneCallback === 'function') {
          doneCallback();
        }
      }
    }, 1000);

    return intervalId;
  } catch (error) {
    console.error("[ʱ¼ä.µ¹¼ÆʱÃë] ´íÎó£º" + error);
    return null;
  }
}

ÕâÊÇÒ»¸öµ¹¼Æʱ¹¦ÄÜ£º

  • ÿÃëµ÷ÓÃÒ»´Îcallback
  • ´«ÈëÊ£ÓàÃëÊý
  • µ¹¼Æʱ½áÊøʱµ÷ÓÃdoneCallback
  • ·µ»ØintervalId¹©È¡ÏûʹÓÃ
/**
 * µÈ´ýÖ¸¶¨×Ö·û³öÏÖ
 */
µÈ´ýÖ¸¶¨×Ö·û³öÏÖ: function(checkFn, timeout, interval) {
  try {
    if (typeof checkFn !== 'function') {
      console.error("[ʱ¼ä.µÈ´ýÖ¸¶¨×Ö·û³öÏÖ] ´íÎó£ºcheckFn±ØÐëÊǺ¯Êý");
      return Promise.reject("checkFn±ØÐëÊǺ¯Êý");
    }

    timeout = timeout || 5000;
    interval = interval || 100;

    return new Promise(function(resolve, reject) {
      if (checkFn()) {
        resolve();
        return;
      }

      var startTime = Date.now();
      var intervalId = setInterval(function() {
        if (Date.now() - startTime > timeout) {
          clearInterval(intervalId);
          reject("µÈ´ý³¬Ê±");
          return;
        }

        if (checkFn()) {
          clearInterval(intervalId);
          resolve();
        }
      }, interval);
    });
  } catch (error) {
    console.error("[ʱ¼ä.µÈ´ýÖ¸¶¨×Ö·û³öÏÖ] ´íÎó£º" + error);
    return Promise.reject(error);
  }
}

ÕâÊÇÒ»¸ö¸ß¼¶µÄµÈ´ý¹¦ÄÜ£º

  • ½ÓÊÜÒ»¸ö¼ì²éº¯Êý
  • ¶¨ÆÚ¼ì²éÌõ¼þÊÇ·ñÂú×ã
  • Ö§³Ö³¬Ê±ÉèÖÃ
  • ·µ»ØPromise

6. ´íÎó´¦ÀíÌصã

ËùÓз½·¨¶¼²ÉÓÃÁËͳһµÄ´íÎó´¦Àíģʽ£º

  1. try-catch °ü¹üÖ÷ÒªÂß¼­
  2. ÏêϸµÄ²ÎÊýÑéÖ¤
  3. ͳһµÄ´íÎóÈÕÖ¾¸ñʽ
  4. ʧ°Üʱ·µ»Ønull»òreject Promise

7. ʹÓÃʾÀý

// »ù´¡Ó÷¨
var now = ʱ¼ä.µ±Ç°Ê±¼ä();
var formatted = ʱ¼ä.¸ñʽ»¯(now, "YYYYÄêMMÔÂDDÈÕ");

// Òì²½µÈ´ý
ʱ¼ä.µÈ´ýÖ¸¶¨Ê±¼ä(1000).then(function() {
  console.log("1ÃëºóÖ´ÐÐ");
});

// µ¹¼Æʱ
ʱ¼ä.µ¹¼ÆʱÃë(5, 
        function(remain) { console.log(remain + "Ãë"); },
        function() { console.log("µ¹¼Æʱ½áÊø"); }
       );

// µÈ´ýÌõ¼þ
ʱ¼ä.µÈ´ýÖ¸¶¨×Ö·û³öÏÖ(
  function() { return ÆÁÄ»ÎÄ×Ö.indexOf("³É¹¦") >= 0; },
  5000
).then(function() {
  console.log("ÕÒµ½ÁË");
});

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