模板版本：v0.2.0
[!TIP] Github 地址
进入到工程目录并输入以下命令：
npm install moment@2.30.1yarn add moment@2.30.1快速使用：
import moment from 'moment';
moment().format();设定moment区域：
// import 方式
import 'moment/locale/zh-cn';
moment.locale('zh-cn');本文档内容基于以下版本验证通过：
- RNOH：0.72.20; SDK：HarmonyOS NEXT Developer Preview2; IDE：DevEco Studio 5.0.3.200; ROM：205.0.0.18;
- RNOH：0.72.33; SDK：OpenHarmony 5.0.0.71(API Version 12 Release); IDE：DevEco Studio 5.0.3.900; ROM：NEXT.0.0.71;
详情请查看moment官方文档
以下moment为moment.js导出的对象，即：
import moment from 'moment';下面的代码展示了这个库的基本使用示例：
// 获取今天0时0分0秒
moment().startOf("day");
// 获取当前月第一天0时0分0秒
moment().startOf("month");
// 获取当前月的总天数
moment().daysInMonth();
// 获取时间戳(以秒为单位)
moment().format("X"); // 返回值为字符串类型
moment().unix(); // 返回值为数值型
// 获取时间戳(以毫秒为单位)
moment().format("x"); // 返回值为字符串类型
moment().valueOf(); // 返回值为数值型
// 获取年份
moment().year();
moment().get("year");
// 获取月份
moment().month(); // (0~11, 0: January, 11: December)
moment().get("month");
// 获取一个星期中的某一天
moment().date();
moment().get("date");
// 获取小时
moment().hours();
moment().get("hours");
// 获取分钟
moment().minutes();
moment().get("minutes");
// 获取当前的年月日时分秒
moment().toArray(); // [years, months, date, hours, minutes, seconds, milliseconds]
moment().toObject(); // {years: xxxx, months: x, date: xx ...}
// 设置年份
moment().year(2019);
moment().set("year", 2019);
moment().set({ year: 2019 });
// 设置月份
moment().month(11); // (0~11, 0: January, 11: December)
moment().set("month", 11);
// 设置某个月中的某一天
moment().date(15);
moment().set("date", 15);
// 设置某个星期中的某一天
moment().weekday(0); // 设置日期为本周第一天（周日）
moment().isoWeekday(1); // 设置日期为本周周一
moment().set("weekday", 0);
moment().set("isoWeekday", 1);
// 设置小时
moment().hours(12);
moment().set("hours", 12);
// 年份+1
moment().add(1, "years");
moment().add({ years: 1 });
// 获取两个日期之间的时间差
let start_date = moment().subtract(1, "weeks");
let end_date = moment();
end_date.diff(start_date); // 返回毫秒数
end_date.diff(start_date, "months"); // 0
end_date.diff(start_date, "weeks"); // 1
end_date.diff(start_date, "days"); // 7
start_date.diff(end_date, "days"); // -7
// 转化为JavaScript原生Date对象
moment().toDate();
new Date(moment());
// 格式化年月日： 'xxxx年xx月xx日'
moment().format("YYYY年MM月DD日");
// 格式化年月日： 'xxxx-xx-xx'
moment().format("YYYY-MM-DD");
// 格式化时分秒(24小时制)： 'xx时xx分xx秒'
moment().format("HH时mm分ss秒");
// 格式化时分秒(12小时制)：'xx:xx:xx am/pm'
moment().format("hh:mm:ss a");如下是已验证接口展示:
[!TIP] "HarmonyOS Support"列为 yes 表示 HarmonyOS 平台支持该属性；no 则表示不支持；partially 表示部分支持。使用方法跨平台一致，效果对标 iOS 或 Android 的效果。
| Name | Description | Type | Required | HarmonyOS Support |
|---|---|---|---|---|
| millisecond | Gets or sets the milliseconds. | function | no | yes |
| second | Gets or sets the seconds. | function | no | yes |
| minute | Gets or sets the minutes. | function | no | yes |
| hour | Gets or sets the hour. | function | no | yes |
| date | Gets or sets the day of the month | function | no | yes |
| day | Gets or sets the day of the week. | function | no | yes |
| weekday | Gets or sets the day of the week according to the locale. | function | no | yes |
| isoWeekday | Gets or sets the ISO day of the week with 1 being Monday and 7 being Sunday. | function | no | yes |
| dayOfYear | Gets or sets the day of the year. | function | no | yes |
| week | Gets or sets the week of the year. | function | no | yes |
| isoWeek | Gets or sets the ISO week of the year. | function | no | yes |
| month | Gets or sets the month. | function | no | yes |
| quarter | Gets the quarter (1 to 4). | function | no | yes |
| year | Gets or sets the year. | function | no | yes |
| weekYear | Gets or sets the week-year according to the locale. | function | no | yes |
| isoWeekYear | Gets or sets the ISO week-year. | function | no | yes |
| weeksInYear | Gets the number of weeks according to locale in the current moment's year. | function | no | yes |
| isoWeeksInYea | Gets the number of weeks in the current moment's year, according to ISO weeks. | function | no | yes |
| get | String getter. In general Units are case insensitive, and support plural and short forms: year (years, y), month (months, M), date (dates, D), hour (hours, h), minute (minutes, m), second (seconds, s), millisecond (milliseconds, ms). |
function | no | yes |
| set | Generic setter, accepting unit as first argument, and value as second: Units are case insensitive, and support plural and short forms: year (years, y), month (months, M), date (dates, D), hour (hours, h), minute (minutes, m), second (seconds, s), millisecond (milliseconds, ms). |
function | no | yes |
| Name | Description | Type | Required | HarmonyOS Support |
|---|---|---|---|---|
| add | Mutates the original moment by adding time. | function | no | yes |
| subtract | Mutates the original moment by subtracting time. | function | no | yes |
| startOf | Mutates the original moment by setting it to the start of a unit of time. | function | no | yes |
| endOf | Mutates the original moment by setting it to the end of a unit of time. | function | no | yes |
| local | Sets a flag on the original moment to use local time to display a moment instead of the original moment's time. | function | no | yes |
| utc | Sets a flag on the original moment to use UTC to display a moment instead of the original moment's time. | function | no | yes |
| utcOffset | Get or set the UTC offset in minutes. | function | no | yes |
| Name | Description | Type | Required | HarmonyOS Support |
|---|---|---|---|---|
| format | This is the most robust display option. It takes a string of tokens and replaces them with their corresponding values. | function | no | yes |
| fromNow | A common way of displaying time is handled by moment#fromNow. This is sometimes called timeago or relative time. | function | no | yes |
| from | You may want to display a moment in relation to a time other than now. In that case, you can use moment#from. | function | no | yes |
| toNow | A common way of displaying time is handled by moment#toNow. This is sometimes called timeago or relative time. | function | no | yes |
| to | You may want to display a moment in relation to a time other than now. In that case, you can use moment#to. | function | no | yes |
| calendar | Calendar time displays time relative to a given referenceDay (defaults to the start of today), but does so slightly differently than moment#fromNow. | function | no | yes |
| diff | To get the difference in milliseconds, use moment#diff like you would use moment#from. | function | no | yes |
| valueOf | moment#valueOf simply outputs the number of milliseconds since the Unix Epoch, just like Date#valueOf. | function | no | yes |
| unix | moment#unix outputs a Unix timestamp (the number of seconds since the Unix Epoch). | function | no | yes |
| daysInMonth | Get the number of days in the current month. | function | no | yes |
| toDate | To get a copy of the native Date object that Moment.js wraps, use moment#toDate. | function | no | yes |
| toArray | This returns an array that mirrors the parameters from new Date(). | function | no | yes |
| toJSON | When serializing an object to JSON, if there is a Moment object, it will be represented as an ISO8601 string, adjusted to UTC. | function | no | yes |
| toISOString | Formats a string to the ISO8601 standard. | function | no | yes |
| toObject | This returns an object containing year, month, day-of-month, hour, minute, seconds, milliseconds. | function | no | yes |
| toString | Returns an english string in a similar format to JS Date's .toString(). | function | no | yes |
| inspect | Returns a machine readable string, that can be evaluated to produce the same moment. Because of the name it's also used in node interactive shell to display objects. | function | no | yes |
| Name | Description | Type | Required | HarmonyOS Support |
|---|---|---|---|---|
| isBefore | Check if a moment is before another moment. The first argument will be parsed as a moment, if not already so. | function | no | yes |
| isSame | Check if a moment is the same as another moment. The first argument will be parsed as a moment, if not already so. | function | no | yes |
| isAfter | Check if a moment is after another moment. The first argument will be parsed as a moment, if not already so. | function | no | yes |
| isSameOrBefore | Check if a moment is before or the same as another moment. The first argument will be parsed as a moment, if not already so. | function | no | yes |
| isSameOrAfter | Check if a moment is after or the same as another moment. The first argument will be parsed as a moment, if not already so. | function | no | yes |
| isBetween | Check if a moment is between two other moments, optionally looking at unit scale (minutes, hours, days, etc). | function | no | yes |
| isDST | moment#isDST checks if the current moment is in daylight saving time. | function | no | yes |
| isLeapYear | moment#isLeapYear returns true if that year is a leap year, and false if it is not. | function | no | yes |
| isMoment | To check if a variable is a moment object, use moment.isMoment(). | function | no | yes |
| isDate | To check if a variable is a native js Date object, use moment.isDate(). | function | no | yes |
| Name | Description | Type | Required | HarmonyOS Support |
|---|---|---|---|---|
| duration | To create a duration, call moment.duration() with the length of time in milliseconds. | function | no | yes |
| 格式代码 | 说明 | 返回值例子 |
|---|---|---|
| M | 数字表示的月份，没有前导零 | 1到12 |
| MM | 数字表示的月份，有前导零 | 01到12 |
| MMM | 三个字母缩写表示的月份 | Jan到Dec |
| MMMM | 月份，完整的文本格式 | January到December |
| Q | 季度 | 1到4 |
| D | 月份中的第几天，没有前导零 | 1到31 |
| DD | 月份中的第几天，有前导零 | 01到31 |
| d | 星期中的第几天，数字表示 | 0到6，0表示周日，6表示周六 |
| ddd | 三个字母表示星期中的第几天 | Sun到Sat |
| dddd | 星期几，完整的星期文本 | 从Sunday到Saturday |
| w | 年份中的第几周 | 如42：表示第42周 |
| YYYY | 四位数字完整表示的年份 | 如：2014 或 2000 |
| YY | 两位数字表示的年份 | 如：14 或 98 |
| A | 大写的AM PM | AM PM |
| a | 小写的am pm | am pm |
| HH | 小时，24小时制，有前导零 | 00到23 |
| H | 小时，24小时制，无前导零 | 0到23 |
| hh | 小时，12小时制，有前导零 | 00到12 |
| h | 小时，12小时制，无前导零 | 0到12 |
| m | 没有前导零的分钟数 | 0到59 |
| mm | 有前导零的分钟数 | 00到59 |
| s | 没有前导零的秒数 | 1到59 |
| ss | 有前导零的描述 | 01到59 |
| X | Unix时间戳 | 1411572969 |