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331 lines
10 KiB
331 lines
10 KiB
/**
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* 高频事件触发，但在n秒内只会执行一次，所以节流会稀释函数的执行频率
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*/
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export function throttle(func, wait = 300) {
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let isOK = true; // 标志位
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return function () {
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if (!isOK) {
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return;
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}
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isOK = false;
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setTimeout(() => {
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func.apply(this, arguments);
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isOK = true;
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}, wait);
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};
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}
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/**
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* 触发高频事件后n秒内函数只会执行一次，如果n秒内高频事件再次被触发，则重新计算时间
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*/
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export function debounce(func, wait = 500, immediate = false) {
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let timer;
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let result;
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return function () {
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if (timer) {
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clearTimeout(timer);
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}
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if (immediate) {
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if (!timer) {
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result = func.apply(this, arguments);
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}
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} else {
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// this 指向 和 event 指向； => 和 apply
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timer = setTimeout(() => {
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result = func.apply(this, arguments);
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}, wait);
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}
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return result;
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};
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}
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/**
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* 拼接url地址
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*/
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export function joinUrl(href, opts){
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if(!opts){
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return href;
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}
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let params = '',
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keys = Object.keys(opts).map(function(key){
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return encodeURIComponent(key) + '=' + encodeURIComponent(opts[key]);
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}),
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div = href.indexOf('?') != -1 ? '&' : '?';
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params = keys.join('&');
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return href + div + params;
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}
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// 登录后才会继续执行
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export async function doAfterLogin() {
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let app = getApp();
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return new Promise(async (reslove, reject) => {
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let i = 1;
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while (app.globalData.token == '' || app.globalData.gridId == '' || app.globalData.currentGridName == '') {
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// 等了一会还不行就重新登录
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i += 1;
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if (i == 10 || i == 100 || i == 250 || i == 600 || i % 3000 == 0) {
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if (await appLogin()) {
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return reslove();
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}
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}
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await nextTick(100);
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}
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return reslove();
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});
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}
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/**
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* 根据元素大小排序
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* key:元素
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* desc:true 升序 false 降序
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*/
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export function compare(key, desc) {
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return function (a, b) {
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let value1 = a[key];
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let value2 = b[key];
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if (desc == true) {
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// 升序排列
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return value1 - value2;
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} else {
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// 降序排列
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return value2 - value1;
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}
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};
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}
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/**
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* 四舍五入 自定义小数位数，空缺补0
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*/
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export function round(num, n) {
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let dd = 1;
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let tempnum;
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for (let i = 0; i < n; i++) {
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dd *= 10;
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}
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tempnum = num * dd;
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tempnum = Math.round(tempnum);
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return formatnumber(tempnum / dd, n);
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}
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export function formatnumber(value, num) {
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var a;
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var b;
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var c;
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var i;
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a = value.toString();
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b = a.indexOf('.');
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c = a.length;
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if (num == 0) {
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if (b != -1) {
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a = a.substring(0, b);
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}
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} else {
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if (b == -1) {
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a = a + '.';
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for (i = 1; i <= num; i++) {
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a = a + '0';
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}
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} else {
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a = a.substring(0, b + num + 1);
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for (i = c; i <= b + num; i++) {
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a = a + '0';
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}
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}
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}
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return a;
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}
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export function byteConvert(bytes) {
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if (isNaN(bytes)) {
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return '';
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}
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var symbols = ['bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
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var exp = Math.floor(Math.log(bytes) / Math.log(2));
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if (exp < 1) {
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exp = 0;
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}
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var i = Math.floor(exp / 10);
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bytes = bytes / Math.pow(2, 10 * i);
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if (bytes.toString().length > bytes.toFixed(2).toString().length) {
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bytes = bytes.toFixed(2);
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}
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return bytes + ' ' + symbols[i];
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}
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var x_PI = 52.35987755982988;
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var PI = 3.141592653589793;
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var a = 6378245;
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var ee = 0.006693421622965943;
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export function gcj02tobd09(lng, lat) {
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var z = Math.sqrt(lng * lng + lat * lat) + 0.00002 * Math.sin(lat * x_PI);
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var theta = Math.atan2(lat, lng) + 0.000003 * Math.cos(lng * x_PI);
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var bd_lng = z * Math.cos(theta) + 0.0065;
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var bd_lat = z * Math.sin(theta) + 0.0064;
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return [bd_lng, bd_lat];
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}
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export function wgs84togcj02(lng, lat) {
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let dlat = transformlat(lng - 105, lat - 35);
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let dlng = transformlng(lng - 105, lat - 35);
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let radlat = (lat / 180) * PI;
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let magic = Math.sin(radlat);
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magic = 1 - ee * magic * magic;
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let sqrtmagic = Math.sqrt(magic);
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dlat = (dlat * 180) / (((a * (1 - ee)) / (magic * sqrtmagic)) * PI);
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dlng = (dlng * 180) / ((a / sqrtmagic) * Math.cos(radlat) * PI);
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let mglat = lat + dlat;
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let mglng = lng + dlng;
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console.log(mglng, mglat);
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return [mglng, mglat];
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}
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export function gcj02_to_wgs84(lng, lat) {
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let dlat = transformlat(lng - 105, lat - 35);
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let dlng = transformlng(lng - 105, lat - 35);
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let radlat = (lat / 180) * PI;
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let magic = Math.sin(radlat);
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magic = 1 - ee * magic * magic;
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let sqrtmagic = Math.sqrt(magic);
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dlat = (dlat * 180) / (((a * (1 - ee)) / (magic * sqrtmagic)) * PI);
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dlng = (dlng * 180) / ((a / sqrtmagic) * Math.cos(radlat) * PI);
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let mglat = lat + dlat;
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let mglng = lng + dlng;
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return [lng * 2 - mglng, lat * 2 - mglat];
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}
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function transformlat(lng, lat) {
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var ret = -100 + 2 * lng + 3 * lat + 0.2 * lat * lat + 0.1 * lng * lat + 0.2 * Math.sqrt(Math.abs(lng));
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ret += ((20 * Math.sin(6 * lng * PI) + 20 * Math.sin(2 * lng * PI)) * 2) / 3;
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ret += ((20 * Math.sin(lat * PI) + 40 * Math.sin((lat / 3) * PI)) * 2) / 3;
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ret += ((160 * Math.sin((lat / 12) * PI) + 320 * Math.sin((lat * PI) / 30)) * 2) / 3;
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return ret;
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}
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function transformlng(lng, lat) {
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var ret = 300 + lng + 2 * lat + 0.1 * lng * lng + 0.1 * lng * lat + 0.1 * Math.sqrt(Math.abs(lng));
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ret += ((20 * Math.sin(6 * lng * PI) + 20 * Math.sin(2 * lng * PI)) * 2) / 3;
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ret += ((20 * Math.sin(lng * PI) + 40 * Math.sin((lng / 3) * PI)) * 2) / 3;
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ret += ((150 * Math.sin((lng / 12) * PI) + 300 * Math.sin((lng / 30) * PI)) * 2) / 3;
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return ret;
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}
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export function getFileType(name) {
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return name.substring(name.lastIndexOf('.') + 1);
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}
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export function arrayToString(arr = []) {
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if (arr.length <= 0) {
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return '';
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}
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return arr.join(',');
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}
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export function stringToArray(str) {
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if (str.length <= 0) {
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return [];
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}
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return str.split(',');
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}
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export function formatNull(test) {
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if (test === null) {
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return '';
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} else {
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return test;
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}
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}
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// 校验是否为空
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function isEmpty(test) {
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if (test === null || test === '') {
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return true;
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} else {
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return false;
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}
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}
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// 是否是有效手机号码
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function isPhone(phone) {
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if (isEmpty(phone)) {
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return false;
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}
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let error = /^1[3456789]\d{9}$/.test(phone);
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return error;
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}
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// 身份证是否有效
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// function isCardId(card) {
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// if (isEmpty(card)) return false
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// return /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/.test(card)
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// }
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// 是否是有效车牌
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function isVehicleId(num) {
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if (isEmpty(num)) {
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return false;
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}
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return (
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/^(([京津沪渝冀豫云辽黑湘皖鲁新苏浙赣鄂桂甘晋蒙陕吉闽贵粤青藏川宁琼使领][A-Z](([0-9]{5}[DF])|([DF]([A-HJ-NP-Z0-9])[0-9]{4})))|([京津沪渝冀豫云辽黑湘皖鲁新苏浙赣鄂桂甘晋蒙陕吉闽贵粤青藏川宁琼使领][A-Z][A-HJ-NP-Z0-9]{4}[A-HJ-NP-Z0-9挂学警港澳使领]))$/.test(
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num
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) ||
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/^(([京津沪渝冀豫云辽黑湘皖鲁新苏浙赣鄂桂甘晋蒙陕吉闽贵粤青藏川宁琼使领][a-z](([0-9]{5}[df])|([df]([a-hj-np-z0-9])[0-9]{4})))|([京津沪渝冀豫云辽黑湘皖鲁新苏浙赣鄂桂甘晋蒙陕吉闽贵粤青藏川宁琼使领][a-z][a-hj-np-z0-9]{4}[a-hj-np-z0-9挂学警港澳使领]))$/.test(
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num
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)
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);
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}
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function isNumber(num) {
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if (isEmpty(num)) {
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return false;
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}
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let error = /^[0-9]+.{0,1}[0-9]{0,2}$/.test(num);
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return error;
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}
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export function isObject(value) {
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return value != null && (typeof value === 'object' || typeof value === 'function');
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}
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function isCardId(num) {
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let idcard = num;
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if (idcard == '') {
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return false;
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}
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let regex1 =
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/^[1-9][0-7]\d{4}((([0-9]{3}[1-9]|[0-9]{2}[1-9][0-9]{1}|[0-9]{1}[1-9][0-9]{2}|[1-9][0-9]{3})(((0[13578]|1[02])(0[1-9]|[12][0-9]|3[01]))|((0[469]|11)(0[1-9]|[12][0-9]|30))|(02(0[1-9]|[1][0-9]|2[0-8]))))|((([0-9]{2})(0[48]|[2468][048]|[13579][26])|((0[48]|[2468][048]|[3579][26])00))0229))\d{3}(\d|X|x)?$/;
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// 身份号码位数及格式检验
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let regex2 = '';
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switch (idcard.length) {
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case 15:
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if ((parseInt(idcard.substr(6, 2)) + 1900) % 4 == 0 || ((parseInt(idcard.substr(6, 2)) + 1900) % 100 == 0 && (parseInt(idcard.substr(6, 2)) + 1900) % 4 == 0)) {
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regex2 = /^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$/; // 测试出生日期的合法性
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} else {
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regex2 = /^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$/; // 测试出生日期的合法性
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}
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if (regex2.test(idcard)) {
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return true;
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} else {
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return false;
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}
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case 18:
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if (regex1.test(idcard)) {
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let S =
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(parseInt(idcard[0]) + parseInt(idcard[10])) * 7 +
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(parseInt(idcard[1]) + parseInt(idcard[11])) * 9 +
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(parseInt(idcard[2]) + parseInt(idcard[12])) * 10 +
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(parseInt(idcard[3]) + parseInt(idcard[13])) * 5 +
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(parseInt(idcard[4]) + parseInt(idcard[14])) * 8 +
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(parseInt(idcard[5]) + parseInt(idcard[15])) * 4 +
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(parseInt(idcard[6]) + parseInt(idcard[16])) * 2 +
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parseInt(idcard[7]) * 1 +
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parseInt(idcard[8]) * 6 +
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parseInt(idcard[9]) * 3;
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let Y = S % 11;
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let M = 'F';
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let JYM = '10X98765432';
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M = JYM.substr(Y, 1);
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// 判断校验位
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if (M == idcard[17].toUpperCase()) {
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return true;
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} else {
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return false;
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}
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} else {
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return false;
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}
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default:
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return false;
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}
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}
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export const RegexTool = {
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isEmpty,
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isPhone,
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isCardId,
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isVehicleId,
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isNumber,
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isObject
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};
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