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Date.prototype.toISOString()

Baseline Widely available

This feature is well established and works across many devices and browser versions. Its been available across browsers since 2015 ..

toISOString() ISO ( ISO 8601), : YYYY-MM-DDTHH:mm:ss.sssZ. UTC, "Z".

In this article

dateObj.toISOString()

: toISOString()

js
var today = new Date("05 October 2011 14:48 UTC");

console.log(today.toISOString()); //  2011-10-05T14:48:00.000Z

, , Firefox.

ECMA-262 5- . , , :

js
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"
      );
    };
  })();
}

Specification
ECMAScript 2027 LanguageSpecification
# sec-date.prototype.toisostring

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  2. Date
    1. Date()
    1. Date.now()
    2. Date.parse()
    3. Date.UTC()
    1. Date.prototype.getDate()
    2. Date.prototype.getDay()
    3. Date.prototype.getFullYear()
    4. Date.prototype.getHours()
    5. Date.prototype.getMilliseconds()
    6. Date.prototype.getMinutes()
    7. Date.prototype.getMonth()
    8. Date.prototype.getSeconds()
    9. Date.prototype.getTime()
    10. Date.prototype.getTimezoneOffset()
    11. Date.prototype.getUTCDate()
    12. Date.prototype.getUTCDay()
    13. Date.prototype.getUTCFullYear()
    14. Date.prototype.getUTCHours()
    15. Date.prototype.getUTCMilliseconds()
    16. Date.prototype.getUTCMinutes()
    17. Date.prototype.getUTCMonth()
    18. Date.prototype.getUTCSeconds()
    19. Date.prototype.getYear()
    20. Date.prototype.setDate()
    21. Date.prototype.setFullYear()
    22. Date.prototype.setHours()
    23. Date.prototype.setMilliseconds()
    24. Date.prototype.setMinutes()
    25. Date.prototype.setMonth()
    26. Date.prototype.setSeconds()
    27. Date.prototype.setTime()
    28. Date.prototype.setUTCDate()
    29. Date.prototype.setUTCFullYear()
    30. Date.prototype.setUTCHours()
    31. Date.prototype.setUTCMilliseconds()
    32. Date.prototype.setUTCMinutes()
    33. Date.prototype.setUTCMonth()
    34. Date.prototype.setUTCSeconds()
    35. Date.prototype.setYear()
    36. Date.prototype.toDateString()
    37. Date.prototype.toISOString()
    38. Date.prototype.toJSON()
    39. Date.prototype.toLocaleDateString()
    40. Date.prototype.toLocaleString()
    41. Date.prototype.toLocaleTimeString()
    42. Date.prototype.toString()
    43. toTemporalInstant()
    44. Date.prototype.toTimeString()
    45. Date.prototype.toUTCString()
    46. Date.prototype.valueOf()
    47. [Symbol.toPrimitive]()
  7. Object/Function
    1. Function.prototype.apply()
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    6. Object.prototype.isPrototypeOf()
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