function formatTime(time) { if (typeof time !== 'number' || time < 0) { return time } var hour = parseInt(time / 3600) time = time % 3600 var minute = parseInt(time / 60) time = time % 60 var second = time return ([hour, minute, second]).map(function (n) { n = n.toString() return n[1] ? n : '0' + n }).join(':') } function formatLocation(longitude, latitude) { if (typeof longitude === 'string' && typeof latitude === 'string') { longitude = parseFloat(longitude) latitude = parseFloat(latitude) } longitude = longitude.toFixed(2) latitude = latitude.toFixed(2) return { longitude: longitude.toString().split('.'), latitude: latitude.toString().split('.') } } var dateUtils = { UNITS: { '年': 31557600000, '月': 2629800000, '天': 86400000, '小时': 3600000, '分钟': 60000, '秒': 1000 }, humanize: function (milliseconds) { var humanize = ''; for (var key in this.UNITS) { if (milliseconds >= this.UNITS[key]) { humanize = Math.floor(milliseconds / this.UNITS[key]) + key + '前'; break; } } return humanize || '刚刚'; }, format: function (dateStr) { var date = this.parse(dateStr) var diff = Date.now() - date.getTime(); if (diff < this.UNITS['天']) { return this.humanize(diff); } var _format = function (number) { return (number < 10 ? ('0' + number) : number); }; return date.getFullYear() + '/' + _format(date.getMonth() + 1) + '/' + _format(date.getDate()) + '-' + _format(date.getHours()) + ':' + _format(date.getMinutes()); }, parse: function (str) { //将"yyyy-mm-dd HH:MM:ss"格式的字符串,转化为一个Date对象 var a = str.split(/[^0-9]/); return new Date(a[0], a[1] - 1, a[2], a[3], a[4], a[5]); } }; module.exports = { formatTime: formatTime, formatLocation: formatLocation, dateUtils: dateUtils }