Date.prototype.toISOString()

toISOString() 方法返回一个 ISO（ISO 8601 Extended Format）格式的字符串： YYYY-MM-DDTHH:mm:ss.sssZ。时区总是UTC（协调世界时），加一个后缀“Z”标识。

语法

dateObj.toISOString()

例子

var today = new Date("05 October 2011 14:48 UTC");
alert(today.toISOString()); // 返回2011-10-05T14:48:00.000Z

上例使用了非标准字符串的解析，该字符串在某些旧的浏览器（如IE）中可能无法被正确解析。

Polyfill

该方法在ECMA-262第5版中被标准化。对于那些不支持此方法的JS引擎可以通过加上下面的代码实现：

if ( !Date.prototype.toISOString ) {
  ( function() {
    
    function pad(number) {
      if ( number < 10 ) {
        return '0' + number;
      }
      return number;
    }
 
    Date.prototype.toISOString = function() {
      return this.getUTCFullYear() +
        '-' + pad( this.getUTCMonth() + 1 ) +
        '-' + pad( this.getUTCDate() ) +
        'T' + pad( this.getUTCHours() ) +
        ':' + pad( this.getUTCMinutes() ) +
        ':' + pad( this.getUTCSeconds() ) +
        '.' + (this.getUTCMilliseconds() / 1000).toFixed(3).slice(2, 5) +
        'Z';
    };
  
  }() );
}

规范

规范版本 规范状态 注解
ECMAScript 5.1 (ECMA-262)
Date.prototype.toISOString
Implemented in JavaScript 1.8		 Standard Initial definition.
ECMAScript 2015 (6th Edition, ECMA-262)
Date.prototype.toISOString		 Standard  

浏览器兼容性

Update compatibility data on GitHub
Desktop Mobile Server
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet Node.js
toISOString Chrome Full support 3 Edge Full support 12 Firefox Full support 1 IE Full support 9 Opera Full support Yes Safari Full support Yes WebView Android Full support ≤37 Chrome Android Full support 18 Firefox Android Full support 4 Opera Android Full support Yes Safari iOS Full support Yes Samsung Internet Android Full support 1.0 nodejs Full support Yes

Legend

Full support  
Full support

相关链接

  1. JavaScript 标准库
  2. Date
  3. 属性
    1. Date.prototype
  4. 方法
    1. Date.UTC()
    2. Date.now()
    3. Date.parse()
    4. Date.prototype.getDate()
    5. Date.prototype.getDay()
    6. Date.prototype.getFullYear()
    7. Date.prototype.getHours()
    8. Date.prototype.getMilliseconds()
    9. Date.prototype.getMinutes()
    10. Date.prototype.getMonth()
    11. Date.prototype.getSeconds()
    12. Date.prototype.getTime()
    13. Date.prototype.getTimezoneOffset()
    14. Date.prototype.getUTCDate()
    15. Date.prototype.getUTCDay()
    16. Date.prototype.getUTCFullYear()
    17. Date.prototype.getUTCHours()
    18. Date.prototype.getUTCMilliseconds()
    19. Date.prototype.getUTCMinutes()
    20. Date.prototype.getUTCMonth()
    21. Date.prototype.getUTCSeconds()
    22. Date.prototype.getYear()
    23. Date.prototype.setDate()
    24. Date.prototype.setFullYear()
    25. Date.prototype.setHours()
    26. Date.prototype.setMilliseconds()
    27. Date.prototype.setMinutes()
    28. Date.prototype.setMonth()
    29. Date.prototype.setSeconds()
    30. Date.prototype.setTime()
    31. Date.prototype.setUTCDate()
    32. Date.prototype.setUTCFullYear()
    33. Date.prototype.setUTCHours()
    34. Date.prototype.setUTCMilliseconds()
    35. Date.prototype.setUTCMinutes()
    36. Date.prototype.setUTCMonth()
    37. Date.prototype.setUTCSeconds()
    38. Date.prototype.setYear()
    39. Date.prototype.toDateString()
    40. Date.prototype.toGMTString()
    41. Date.prototype.toISOString()
    42. Date.prototype.toJSON()
    43. Date.prototype.toLocaleDateString()
    44. Date.prototype.toLocaleFormat()
    45. Date.prototype.toLocaleString()
    46. Date.prototype.toLocaleTimeString()
    47. Date.prototype.toSource()
    48. Date.prototype.toString()
    49. Date.prototype.toTimeString()
    50. Date.prototype.toUTCString()
    51. Date.prototype.valueOf()
    52. Date.prototype[@@toPrimitive]
  5. 继承
  6. Function
  7. 属性
    1. Function.arguments
    2. Function.arity
    3. Function.caller
    4. Function.displayName
    5. Function.length
    6. Function.name
    7. Function.prototype
  8. 方法
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call()
    4. Function.prototype.isGenerator()
    5. Function.prototype.toSource()
    6. Function.prototype.toString()
  9. Object
  10. 属性
    1. Object.prototype.__count__
    2. Object.prototype.__noSuchMethod__
    3. Object.prototype.__parent__
    4. Object.prototype.__proto__
    5. Object.prototype.constructor
  11. 方法
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toSource()
    10. Object.prototype.toString()
    11. Object.prototype.unwatch()
    12. Object.prototype.valueOf()
    13. Object.prototype.watch()
    14. Object.setPrototypeOf()