muzidigbig-utils-npm/src/modules/datetime/index.js

一个日常开发积累的工具包。 每次 npm publish 都需要修改 package.json version版本号保证其唯一。

/**
 * 将时间解析为字符串
 * @param {(Object|string|number)} time
 * @param {string} cFormat
 * @returns {string}
 * 
 * Date.now() 时间戳
 * parseTime(new Date().getTime(),'{y}-{m}-{d} {h}:{i}:{s} {a}') => '2025-04-29 13:58:01 星期二'
 */
function parseTime(time, cFormat) {
    if (arguments.length === 0) {
        return null
    }
    if (!time) {
        return time
    }
    const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
    let date
    if (typeof time === 'object') {
        date = time
    } else {
        if (typeof time === 'string' && /^[0-9]+$/.test(time)) {
            time = parseInt(time)
        }
        if (typeof time === 'number' && time.toString().length === 10) {
            time = time * 1000
        }
        date = new Date(time)
    }
    const formatObj = {
        y: date.getFullYear(),
        m: date.getMonth() + 1,
        d: date.getDate(),
        h: date.getHours(),
        i: date.getMinutes(),
        s: date.getSeconds(),
        a: date.getDay()
    }
    const timeStr = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
        let value = formatObj[key]
        // Note: getDay() returns 0 on Sunday
        if (key === 'a') {
            return `星期${['日', '一', '二', '三', '四', '五', '六'][value]}`
        }
        if (result.length > 0 && value < 10) {
            value = '0' + value
        }
        return value || 0
    })
    return timeStr
}


/**
 * @param {number} time
 * @param {string} option
 * @returns {string}
 * 
 * formatTime(1622427445085) => '5月31日10时17分'
 */
function formatTime(time, option) {
    if (('' + time).length === 10) {
        time = parseInt(time) * 1000
    } else {
        time = +time
    }
    const d = new Date(time)
    const now = Date.now()

    const diff = (now - d) / 1000

    if (diff < 30) {
        return '刚刚'
    } else if (diff < 3600) {
        // less 1 hour
        return Math.ceil(diff / 60) + '分钟前'
    } else if (diff < 3600 * 24) {
        return Math.ceil(diff / 3600) + '小时前'
    } else if (diff < 3600 * 24 * 2) {
        return '1天前'
    }
    if (option) {
        return parseTime(time, option)
    } else {
        return (
            d.getMonth() +
            1 +
            '月' +
            d.getDate() +
            '日' +
            d.getHours() +
            '时' +
            d.getMinutes() +
            '分'
        )
    }
}

export {
    parseTime,
    formatTime,
}