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Date.prototype.setYear()

Deprecated

Avoid using this feature in new projects. The getYear() and setYear() methods use a truncated number instead of the actual year number, known as a year 2000 problem. This feature may be a candidate for removal from web standards or browsers.

Date setYear() .

setYear() setFullYear() new Date() Date.parse() . 22 61

  • setYear() 1900 . date.setYear(22) 1922 date.setYear(61) 1961 . ( new Date(61, 1) 1961 new Date("2/1/22") 2022 , Date.parse() ).

  • setFullYear() date.setFullYear(61) 0061 , date.setFullYear(22) 0022 .

setYear() setFullYear() .

In this article

js
setYear(yearValue)

yearValue

.

Date . yearValue NaN( undefined NaN ) NaN .

yearValue 0 99 , dateObj 1900 + yearValue . dateObj yearValue .

setYear()

1996 . 2000 .

js
const theBigDay = new Date();

theBigDay.setYear(96);
theBigDay.setYear(1996);
theBigDay.setYear(2000);

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

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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. Date.prototype[@@toPrimitive]
  7. Object/Function
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call()
    4. Function.prototype.toSource()
    5. Function.prototype[@@hasInstance]()
    1. Function: displayName
    2. Function.prototype.length
    3. Function: name
    4. Function
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    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()
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    10. Object.prototype.valueOf()
    1. Object.prototype.__proto__
    2. Object.prototype.constructor
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