10 examples of 'future date validation in javascript' in JavaScript

87
function isDateValid(value) {
88
    const matched = value.match(dateRe);
89
90
    if (matched) {
91
        const epoch = Date.parse(value);
92
        if (!epoch && epoch !== 0) return false;
93
94
        const d = new Date(epoch);
95
        d.setTime(d.getTime() + d.getTimezoneOffset() * 60 * 1000);
96
97
        if (
98
            d.getFullYear() == matched[1] &&
99
            d.getMonth() + 1 == +matched[2] &&
100
            d.getDate() == +matched[3]
101
        ) {
102
            return true;
103
        }
104
    }
105
106
    return false;
107
}

2156
getValidatedDate: function getValidatedDate(value) {
2157
        var owner = this,
2158
            result = '';
2159
2160
        value = value.replace(/[^\d]/g, '');
2161
2162
        owner.blocks.forEach(function (length, index) {
2163
            if (value.length > 0) {
2164
                var sub = value.slice(0, length),
2165
                    sub0 = sub.slice(0, 1),
2166
                    rest = value.slice(length);
2167
2168
                switch (owner.datePattern[index]) {
2169
                    case 'd':
2170
                        if (sub === '00') {
2171
                            sub = '01';
2172
                        } else if (parseInt(sub0, 10) > 3) {
2173
                            sub = '0' + sub0;
2174
                        } else if (parseInt(sub, 10) > 31) {
2175
                            sub = '31';
2176
                        }
2177
2178
                        break;
2179
2180
                    case 'm':
2181
                        if (sub === '00') {
2182
                            sub = '01';
2183
                        } else if (parseInt(sub0, 10) > 1) {
2184
                            sub = '0' + sub0;
2185
                        } else if (parseInt(sub, 10) > 12) {
2186
                            sub = '12';
2187
                        }
2188
2189
                        break;
2190
                }
2191
2192
                result += sub;
2193
2194
                // update remaining string
2195
                value = rest;
2196
            }
2197
        });
2198
2199
        return this.getFixedDateString(result);
2200
    },

42
function validateDate(value, meta) {
43
  if (value && !utc(value).isValid())
44
    return {[meta._id]: `${meta.label} must be a valid date`}
45
}

30
function parseDate(value) {
31
  if (value instanceof Date) {
32
    return value;
33
  }
34
  let date = new Date(value);
35
  if (date.toString() === 'Invalid Date') {
36
    throw new Error();
37
  }
38
  return date;
39
}

15
export function getValidDate(date: unknown): Date {
16
  if (typeof date === 'undefined') {
17
    throw new Error('expects a date');
18
  }
19
20
  date = date || new Date();
21
  if (date instanceof Date) {
22
    return date;
23
  }
24
25
  if (typeof date === 'number') {
26
    if (isValidDate(date)) date = new Date(date);
27
  }
28
29
  if (typeof date === 'string') {
30
    if (!isValidDate(date)) {
31
      date = date.replace(/-/g, '/');
32
    }
33
34
    if (isValidDate(date as string)) {
35
      date = new Date(date as string);
36
    }
37
  }
38
39
  return date as Date;
40
}

9
export default function dateValidation(dateToValidate, options) {
10
    return moment(dateToValidate, options).isValid();
11
}

1
function isValidDate(value: number | string) {
2
  return !Number.isNaN(+new Date(value));
3
}

20
export default function parseDate(
21
  date: string | number | Date,
22
  mask = 'default',
23
  locale = zhCN
24
): Date {
25
  if (date instanceof Date) {
26
    return date;
27
  }
28
29
  if (typeof date === 'number') {
30
    return new Date(date);
31
  }
32
33
  mask = mask || 'default';
34
35
  const ret = parse(date, mask, locale);
36
37
  if (!ret) {
38
    return null;
39
  }
40
41
  return ret;
42
}

106
function dateHandler(date) {
107
		var
108
      dArray, // 数组化后的日期
109
      ret;
110
111
		if (typeof date === 'string') { // 如果date参数是string类型
112
			if (rNumberstring.test(date)) { // 如果date参数是number string类型
113
        ret = new Date(date);
114
			} else { // 这里重新格式化,一般都是从服务端过来的数据,必须有年月日,并且顺序是年月日时分秒毫秒,并且7个值之间有间隔符,间隔符为\D
115
				dArray = date.match(rDatestring); // 从string中提取new Date需要的参数
116
				if(dArray.length < 3) { // 服务端时间戳,例如NET "/Date(562941040500+0800)/"
117
          ret = new Date(+dArray[0]);
118
				} else { // 格式化过的
119
          ret = new Date(dArray[0], dArray[1] - 1, dArray[2] || 1, dArray[3] || 0, dArray[4] || 0, dArray[5] || 0, dArray[6] || 0);
120
				}
121
			}
122
		} else if (typeof date === 'number' || Object.prototype.toString.call(date) === '[object Date]') { // 如果date参数是number类型、date类型
123
      ret = new Date(+date);
124
		} else if (date == null) { // 如果不存在date参数
125
      ret = new Date();
126
		} else {
127
      return false;
128
    }
129
130
		return ret;
131
	}

54
function ensureDate (value) {
55
  logger(`ensureDate`, value)
56
  return isDate(value) ? value : new Date()
57
}