smart-tourism/smart-ui-app/common/util.js

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.getDay()) + '-' +
			_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]);
	}
};
// 回显数据字典
const selectDictLabel = (datas, value) => {
	var actions = [];
	Object.keys(datas).some((key) => {
		if (datas[key].value == ('' + value)) {
			actions.push(datas[key].label);
			return true;
		}
	})
	return actions.join('');
}

/**
 * 乘法函数，用来得到精确的乘法结果
 * @param {Object} arg1
 * @param {Object} arg2
 */
const accMul = (arg1, arg2) => {
	var m = 0;
	m += deal(arg1);
	m += deal(arg2);
	var r1 = Number(arg1.toString().replace('.', ''));
	var r2 = Number(arg2.toString().replace('.', ''));
	return (r1 * r2) / Math.pow(10, m);
}
/**
 * 加法函数，用来得到精确的加法结果
 * @param {Object} arg1
 * @param {Object} arg2
 */
const accAdd = (arg1, arg2) => {
	var r1 = deal(arg1);
	var r2 = deal(arg2);
	var m = Math.pow(10, Math.max(r1, r2));
	return (arg1 * m + arg2 * m) / m;
}
/**
 * 除法函数，用来得到精确的除法结果
 * @param {Object} arg1
 * @param {Object} arg2
 */
const accDiv = (arg1, arg2) => {
	var t1 = deal(arg1);
	var t2 = deal(arg2);
	var r1 = Number(arg1.toString().replace(".", ""))
	var r2 = Number(arg2.toString().replace(".", ""))
	return (r1 / r2) * Math.pow(10, t2 - t1);
}
/**
 * 求小数点后的数据长度
 */
const deal = (arg) => {
	var t = 0;
	try {
		t = arg.toString().split('.')[1].length;
	} catch (e) {}
	return t;
}
/**
 * 时间加上多少分
 */
const dateTo = (date, minute) => {
	let time = new Date(date);
	time.setMinutes(time.getMinutes() + minute, time.getSeconds(), 0);
	return format(time);

}
/**
 * 判断 有效日期不能小于今天
 */
const dateCompare = (beginDate, endDate) => {
	var beginArrayDate = beginDate.split('-');
	var endArrayDate = endDate.split('-')
	if (parseInt(endArrayDate[0], 10) > parseInt(beginArrayDate[0], 10)) return true;
	if (parseInt(endArrayDate[0], 10) == parseInt(beginArrayDate[0], 10)) {
		if (parseInt(endArrayDate[1], 10) > parseInt(beginArrayDate[1], 10)) return true;
		else {
			if (parseInt(endArrayDate[1], 10) == parseInt(beginArrayDate[1], 10)) {
				if (parseInt(endArrayDate[2], 10) >= parseInt(beginArrayDate[2], 10)) return true;
			}
		}
	}
	return false;
}
/**
 * 获取日期
 * day 获取日期
 * time 获取时间
 */
const getDate = (obj = 'day') => {
	const date = new Date();
	let year = date.getFullYear();
	let month = date.getMonth() + 1;
	let day = date.getDate();
	let Hours = date.getHours();
	let Minutes = date.getMinutes();
	month = month > 9 ? month : '0' + month;
	day = day > 9 ? day : '0' + day;
	Hours = Hours > 9 ? Hours : '0' + Hours;
	Minutes = Minutes > 9 ? Minutes : '0' + Minutes;
	if (obj == 'day') {
		return `${year}-${month}-${day}`;
	}
	if (obj == 'time') {
		return `${year}-${month}-${day}` + ' ' + Hours + ':' + Minutes;
	}
}
/**
 * 格式化时间
 */
const format = (obj) => {
	const date = new Date(obj);
	let year = date.getFullYear();
	let month = date.getMonth() + 1;
	let day = date.getDate();
	let Hours = date.getHours();
	let Minutes = date.getMinutes();
	month = month > 9 ? month : '0' + month;
	day = day > 9 ? day : '0' + day;
	Hours = Hours > 9 ? Hours : '0' + Hours;
	Minutes = Minutes > 9 ? Minutes : '0' + Minutes;
	return `${year}-${month}-${day}` + ' ' + Hours + ':' + Minutes;
}

function convertToChinaNum(num) {
	var arr1 = new Array('零', '一', '二', '三', '四', '五', '六', '七', '八', '九');
	var arr2 = new Array('', '十', '百', '千', '万', '十', '百', '千', '亿', '十', '百', '千', '万', '十', '百', '千',
		'亿'); //可继续追加更高位转换值
	if (!num || isNaN(num)) {
		return "零";
	}
	var english = num.toString().split("")
	var result = "";
	for (var i = 0; i < english.length; i++) {
		var des_i = english.length - 1 - i; //倒序排列设值
		result = arr2[i] + result;
		var arr1_index = english[des_i];
		result = arr1[arr1_index] + result;
	}
	//将【零千、零百】换成【零】 【十零】换成【十】
	result = result.replace(/零(千|百|十)/g, '零').replace(/十零/g, '十');
	//合并中间多个零为一个零
	result = result.replace(/零+/g, '零');
	//将【零亿】换成【亿】【零万】换成【万】
	result = result.replace(/零亿/g, '亿').replace(/零万/g, '万');
	//将【亿万】换成【亿】
	result = result.replace(/亿万/g, '亿');
	//移除末尾的零
	result = result.replace(/零+$/, '')
	//将【零一十】换成【零十】
	//result = result.replace(/零一十/g, '零十');//貌似正规读法是零一十
	//将【一十】换成【十】
	result = result.replace(/^一十/g, '十');
	return result;
}


module.exports = {
	formatTime: formatTime,
	formatLocation: formatLocation,
	dateUtils: dateUtils,
	selectDictLabel: selectDictLabel,
	accMul: accMul,
	accAdd: accAdd,
	accDiv: accDiv,
	dateCompare: dateCompare,
	getDate: getDate,
	dateTo: dateTo,
	cn: convertToChinaNum,
}