10 examples of 'javascript leapyear' in JavaScript

80
function isLeapYear(year) {
81
  return (year % 4 == 0 && year % 100 != 0) || year % 400 ==0;
82
}

52
function isLeapYear(year) {
53
  return (0 == year % 400)
54
    || ((0 == year % 4) && (0 != year % 100))
55
    || (0 == year);
56
}

850
function leapYear(year) {
851
    year = year.getFullYear();
852
    return ((year % 4 === 0) && (year % 100 !== 0)) || (year % 400 === 0);
853
}

223
function getLunarLeapYear(year){
224
	var yearData = lunarInfo[year-minYear];
225
	return yearData[0];
226
};

33
function isLeapYear(year) {
34
  return (year % 4 === 0 && year % 100 !== 0) || (year % 400 === 0);
35
}

7
export function isLeapYear(year: number): boolean {
8
  return ((year % 4 === 0) && (year % 100 !== 0)) || (year % 400 === 0)
9
}

8
isLeap (year) {
9
  // calculation source: https://fa.wikipedia.org/wiki/%D8%B3%D8%A7%D9%84_%DA%A9%D8%A8%DB%8C%D8%B3%D9%87
10
  const list = [
11
    0,
12
    4,
13
    8,
14
    12,
15
    16,
16
    20,
17
    year > 473 ? 24 : 25,
18
    29,
19
    33,
20
    37,
21
    41,
22
    45,
23
    49,
24
    53,
25
    year > 473 ? 57 : 58,
26
    62,
27
    66,
28
    70,
29
    74,
30
    78,
31
    82,
32
    86,
33
    year > 473 ? 90 : 91,
34
    95,
35
    99,
36
    103,
37
    107,
38
    111,
39
    115,
40
    year > 473 ? 119 : 120,
41
    124
42
  ]
43
  return list.includes(year % 128)
44
}

73
export function getIsLeapYear () {
74
    return isLeapYear(this.year());
75
}

67
isLeapYear(year: number): boolean {
68
    return ((year % 4 === 0 && year % 100 !== 0) || year % 400 === 0);
69
}

864
function IsLeapYear (year) {
865
  throw new Error('Not implemented');
866
}