常用的方法(合集)

/**
 * describe:  手机号中间四位显示* 
 */
export function starPhone(phoneNum) {
    let str = String(phoneNum),
        strLen = str.slice(-7, -3);
    return str.replace(strLen, "****");
}
/**
 * 手机号+* 方法二 
 * */
export function starPhone2(phoneNum) {
    var str = phoneNum
    var str2 = str.substr(0, 3) + "****" + str.substr(7);
    return str2;
}
/**
 * describe:  数字千分位 
 */
export function ThousandthPercentile(num) {
    if (num === null) {
        return num = 0;
    } else {
        if (num != undefined) {
            return num = num.replace(/\d{1,3}(?=(\d{3})+(\.|$))/g, '$&,');
        }
    }
}
//保留n位小数
export function roundFun(val, n) {
    return Math.round(val * Math.pow(10, n)) / Math.pow(10, n);
}
// 银行卡号脱敏
export function phoneFormat(val) {
    return val.replace(/(\d{3})\d*(\d{4})/, '$1 **** **** $2')
}
//手机号验证
export function MobileVerification(val) {
    let reg = /^(?:(?:\+|00)86)?1(?:(?:3[\d])|(?:4[5-7|9])|(?:5[0-3|5-9])|(?:6[5-7])|(?:7[0-8])|(?:8[\d])|(?:9[1|8|9]))\d{8}$/;
    return reg.test(val);
}
// 银行卡号校验
export function yhkFication(val) {
    let reg = /^[1-9]\d{9,29}$/
    return reg.test(val)
}
//获取顶部参数
export function getUrlKey(name) {//获取url 参数
    return decodeURIComponent(
        (new RegExp('[?|&]' + name + '=' + '([^&;]+?)(&|#|;|$)').exec(location.href) || [, ""])[1].replace(/\+/g, '%20')) || null;
}
export function handlerDatas(arr) {
    let tempArr = [];
    let endData = [];
    for (let i = 0; i < arr.length; i++) {
        if (tempArr.indexOf(arr[i].templateType) === -1) {
            endData.push({
                templateType: arr[i].templateType,
                children: [arr[i]]
            });
            tempArr.push(arr[i].templateType);
        } else {
            for (let j = 0; j < endData.length; j++) {
                if (endData[j].templateType == arr[i].templateType) {
                    endData[j].children.push(arr[i]);
                    break;
                }
            }
        }
    }
    var newJosn = {};
    for (var u in endData) {
        newJosn['templateType_' + endData[u].templateType] = endData[u].children
    }
    console.log(newJosn); // 最终输出
    return newJosn;
}
// 判断https/http
export function httpsUrl(name) {
    //判断是否符合http://符合返回真不符合返回假
    var http = /^http:\/\/.*/i.test(name);
    //判断是否符合https://符合返回真不符合返回假
    var https = /^https:\/\/.*/i.test(name);
    let httpsBooter;
    //如果两个都为假
    if (!http && !https) {
        httpsBooter = false;
    } else {
        httpsBooter = true;
    }
    return httpsBooter
}
//获取url
export function httpslianjie(url, urlname) {
    var parameter = url.substring(url.indexOf('?') + 1);
    parameter = parameter.split('&');
    var reg = /urlname=/g;
    var menuCode = "";
    for (var i = 0; i < parameter.length; i++) {
        reg.lastIndex = 0;
        if (reg.test(parameter[i])) {
            menuCode = parameter[i].replace(urlname + "=", "");
            break;
        }
    }
    return menuCode;
}
// 小程序跳转
export function launchWeApp(info) {
    if (info.active) {
        var btn = document.getElementById(info.eleId);
        let script = document.createElement("script");
        script.type = "text/wxtag-template";
        script.text = info.content
        let html =
            `<wx-open-launch-weapp style="width:100%;height:100%;display:block;" username="${info.username}" path="${info.url}">${script.outerHTML}</wx-open-launch-weapp>`;
        btn.innerHTML = html;
        btn.addEventListener("launch", info.launchEvent);
        btn.addEventListener("error", info.errorEvent);
    } else {
        var btn = document.getElementById(info.eleId); //获取元素
        let html =
            `<view style="width:100%;height:100%;display:block;">${info.content}</view>`;
        btn.innerHTML = html;
        btn.addEventListener("click", info.noAtiveEvent);
    }
}
export function launchApp(info) {
    if (info.active) {
        var btn = document.getElementById(info.eleId);
        let script = document.createElement("script");
        script.type = "text/wxtag-template";
        script.text = info.content
        let html =
            `<wx-open-launch-app style="width:100%;height:100%;display:block;" appid="${info.appid}" extinfo="${info.extinfo}">${script.outerHTML}</wx-open-launch-app>`;
        btn.innerHTML = html;
        btn.addEventListener("launch", info.launchEvent);
        btn.addEventListener("error", info.errorEvent);
    } else {
        var btn = document.getElementById(info.eleId); //获取元素
        let html =
            `<view style="width:100%;height:100%;display:block;">${info.content}</view>`;
        btn.innerHTML = html;
        btn.addEventListener("click", info.noAtiveEvent);
    }
}
/**
 * 数字格式化金额，整数位每三位用逗号隔开，小数点保留n位(默认保留两位)
 */
export function filterMoney(s, n) {
  if (s !== null && typeof s !== 'undefined') {
    n = n > 0 && n <= 20 ? n : 2;
    s = `${parseFloat(`${s}`.replace(/[^\d\.-]/g, '')).toFixed(n)}`;
    let l = s.split('.')[0].split('').reverse(),
      r = s.split('.')[1];
    let t = '';
    for (let i = 0; i < l.length; i++) {
      t += l[i] + ((i + 1) % 3 === 0 && i + 1 !== l.length ? ',' : '');
    }
    return `${t.split('').reverse().join('')}.${r}`;
  }
  return null;
}