date-manip

---

date-manip / subtract

subtract

函数

default()

Subtracts a specified number of time units from a date. 从日期中减去指定数量的时间单位。

参数

The date to subtract time from. (要减去时间的日期。)

参数

The number of time units to subtract, or an object where keys are time units and values are the number of units to subtract. (要减去的时间单位数量，或一个对象，其中键是时间单位，值是要减去的时间单位数量。)

参数

The unit of time to subtract (e.g., 'year', 'month', 'day', 'hour', 'minute', 'second', 'millisecond'). (要减去的时间单位，例如 'year'、'month'、'day'、'hour'、'minute'、'second'、'millisecond'。) This parameter is required if num is a number. (如果 num 是数字，则此参数是必需的。)

示例

// Subtracting 5 days from a date (从日期中减去5天)
const date1 = new Date('2023-10-01');
subtract(date1, 5, 'day');
console.log(date1.toISOString()); // Outputs: '2023-09-26T00:00:00.000Z' (输出: '2023-09-26T00:00:00.000Z')

// Subtracting 3 months from a date (从日期中减去3个月)
const date2 = new Date('2023-10-01');
subtract(date2, 3, 'month');
console.log(date2.toISOString()); // Outputs: '2023-07-01T00:00:00.000Z' (输出: '2023-07-01T00:00:00.000Z')

// Subtracting 2 years from a date (从日期中减去2年)
const date3 = new Date('2023-10-01');
subtract(date3, 2, 'year');
console.log(date3.toISOString()); // Outputs: '2021-10-01T00:00:00.000Z' (输出: '2021-10-01T00:00:00.000Z')

// Subtracting 1 hour from a date (从日期中减去1小时)
const date4 = new Date('2023-10-01T12:00:00');
subtract(date4, 1, 'hour');
console.log(date4.toISOString()); // Outputs: '2023-10-01T11:00:00.000Z' (输出: '2023-10-01T11:00:00.000Z')

// Subtracting 30 minutes from a date (从日期中减去30分钟)
const date5 = new Date('2023-10-01T12:30:00');
subtract(date5, 30, 'minute');
console.log(date5.toISOString()); // Outputs: '2023-10-01T12:00:00.000Z' (输出: '2023-10-01T12:00:00.000Z')

// Subtracting 45 seconds from a date (从日期中减去45秒)
const date6 = new Date('2023-10-01T12:00:45');
subtract(date6, 45, 'second');
console.log(date6.toISOString()); // Outputs: '2023-10-01T12:00:00.000Z' (输出: '2023-10-01T12:00:00.000Z')

// Subtracting 500 milliseconds from a date (从日期中减去500毫秒)
const date7 = new Date('2023-10-01T12:00:00.500');
subtract(date7, 500, 'millisecond');
console.log(date7.toISOString()); // Outputs: '2023-10-01T12:00:00.000Z' (输出: '2023-10-01T12:00:00.000Z')

// Subtracting multiple time units using an object (使用对象减去多个时间单位)
const date8 = new Date('2023-10-01T12:00:00');
subtract(date8, { year: 1, month: 2, day: 3, hour: 4, minute: 5, second: 6, millisecond: 7 });
console.log(date8.toISOString()); // Outputs: '2022-07-28T07:54:53.993Z' (输出: '2022-07-28T07:54:53.993Z')

调用签名

default(date, input): Date

定义于: src/subtract.ts:7

参数

date

Date

input

number | DateAddingObject

返回

Date

调用签名

default(date, num, unit): Date

定义于: src/subtract.ts:8

参数

date

Date

num

number

unit

Unit

返回

Date