app/utils/tools.js

/**
 * 解析url参数
 * @example ?id=12345&a=b
 * @return Object {id:12345,a:b}
 */
function urlParse(url) {
	let obj = {};
	let reg = /[?&][^?&]+=[^?&]+/g;
	let arr = url.match(reg);
	if (arr) {
		arr.forEach((item) => {
			let tempArr = item.substring(1).split("=");
			let key = decodeURIComponent(tempArr[0]);
			let val = decodeURIComponent(tempArr.splice(1).join("="));
			obj[key] = val;
		});
	}
	return obj;
}

const getNetworkType = () => {
	uni.getNetworkType({
		success: (res) => {
			if (res.networkType === "none") {
				uni.showToast({
					title: "网络好像有点问题,请检查后重试！",
					duration: 2000,
					icon: "none",
				});
				let pages = getCurrentPages();
				if (pages.length) {
					let route = pages[pages.length - 1].route;
					if (route !== "pages/empty/empty") {
						uni.navigateTo({
							url: `/pages/empty/empty?type=wifi`,
						});
					}
				} else {
					uni.navigateTo({
						url: `/pages/empty/empty?type=wifi`,
					});
				}
			}
		},
	});
};

const throttle = (fn, that, gapTime) => {
	// export function throttle(fn, gapTime) {
	if (gapTime == null || gapTime == undefined) {
		gapTime = 1800;
	}
	let _lastTime = that.lastTime;
	let _nowTime = +new Date();
	if (_nowTime - _lastTime > gapTime || !_lastTime) {
		fn.apply(that, arguments); //将this和参数传给原函数
		that.lastTime = _nowTime;
	}
};

/**
 * 计算传秒数的倒计时【天、时、分、秒】
 * @param seconds
 * @returns {{day : *, hours : *, minutes : *, seconds : *}}
 */
const countTimeDown = (seconds) => {
	const leftTime = (time) => {
		if (time < 10) time = "0" + time;
		return time + "";
	};
	return {
		day: leftTime(parseInt(seconds / 60 / 60 / 24, 10)),
		hours: leftTime(parseInt((seconds / 60 / 60) % 24, 10)),
		minutes: leftTime(parseInt((seconds / 60) % 60, 10)),
		seconds: leftTime(parseInt(seconds % 60, 10)),
	};
};

/**
 * 计算当前时间到第二天0点的倒计时[秒]
 * @returns {number}
 */
const theNextDayTime = () => {
	const nowDate = new Date();
	const time =
		new Date(
			nowDate.getFullYear(),
			nowDate.getMonth(),
			nowDate.getDate() + 1,
			0,
			0,
			0
		).getTime() - nowDate.getTime();
	return parseInt(time / 1000);
};

const graceNumber = (number) => {
	if (number == 0) {
		return "0";
	} else if (number > 999 && number <= 9999) {
		return (number / 1000).toFixed(1) + "k";
	} else if (number > 9999 && number <= 99999) {
		return (number / 10000).toFixed(1) + "w";
	} else if (number > 99999) {
		return "10w+";
	}
	return number;
}

// 时间格式化时间为: 多少分钟前、多少天前
// time 2020-09-10 20:20:20
const getDateBeforeNow = (stringTime) => {
	stringTime = new Date(stringTime.replace(/-/g, "/"));
	let minute = 1000 * 60;
	let hour = minute * 60;
	let day = hour * 24;
	let week = day * 7;
	let month = day * 30;
	let time1 = new Date().getTime(); //当前的时间戳
	let time2 = Date.parse(new Date(stringTime)); //指定时间的时间戳
	let time = time1 - time2;
	let result = null;
	if (time < 0) {
		result = stringTime;
	} else if (time / month >= 1) {
		result = parseInt(time / month) + "月前";
	} else if (time / week >= 1) {
		result = parseInt(time / week) + "周前";
	} else if (time / day >= 1) {
		result = parseInt(time / day) + "天前";
	} else if (time / hour >= 1) {
		result = parseInt(time / hour) + "小时前";
	} else if (time / minute >= 1) {
		result = parseInt(time / minute) + "分钟前";
	} else {
		result = "刚刚";
	}
	return result;
}
// 判断是否为空
const isStrEmpty = (str) => {
	if (
		str == null ||
		str == undefined ||
		(typeof str == "object" && str == {}) ||
		(typeof str == "string" && str.trim() == "")
	) {
		return true;
	} else {
		return false;
	}
}


export {
	getNetworkType,
	throttle,
	countTimeDown,
	theNextDayTime,
	graceNumber,
	getDateBeforeNow,
	isStrEmpty
};