caimei-applets-hehe/common/util.js

/* 常用工具函数 */
export const msg = (title, duration = 1500, mask = true, icon = 'none') => {
    //统一提示方便全局修改
    if (Boolean(title) === false) {
        return
    }
    uni.showToast({
        title,
        duration,
        mask,
        icon
    })
}
export const modal = (title, content, confirmText, cancelText, showCancel = false, callBack) => {
    uni.showModal({
        title,
        content,
        confirmText,
        cancelText,
        confirmColor: '#E15616',
        showCancel,
        success: function(res) {
            if (res.confirm) {
                callBack()
            }
        }
    })
}
export const json = type => {
    //模拟异步请求数据
    return new Promise(resolve => {
        setTimeout(() => {
            // console.log(resolve+'======='+type);
            resolve(Json[type])
        }, 500)
    })
}

export const prePage = () => {
    let pages = getCurrentPages()
    let prePage = pages[pages.length - 2]
    // #ifdef H5
    return prePage
    // #endif
    return prePage.$vm
}

/** 时间格式化
 * @param {dateTime} date 标准时间格式 -> new Date()
 * @param {string} format 时间格式化的格式 'yyyy-MM-dd hh:mm:ss'
 * @returns {string} 格式化后的时间  '2017-01-01 01:00:00'
 */
export const dateFormat = (date = new Date(), format = 'yyyy-MM-dd hh:mm:ss') => {
    var o = {
        'M+': date.getMonth() + 1, // month
        'd+': date.getDate(), // day
        'h+': date.getHours(), // hour
        'm+': date.getMinutes(), // minute
        's+': date.getSeconds(), // second
        'q+': Math.floor((date.getMonth() + 3) / 3), // quarter
        S: date.getMilliseconds(), // millisecond
    }
    if (/(y+)/.test(format)) {
        format = format.replace(RegExp.$1, (date.getFullYear() + '').substr(4 - RegExp.$1.length))
    }
    for (var k in o) {
        if (new RegExp('(' + k + ')').test(format)) {
            format = format.replace(RegExp.$1, RegExp.$1.length === 1 ? o[k] : ('00' + o[k]).substr(('' + o[k])
                .length))
        }
    }
    return format
}

// 两个简单数组是否交集
export const isIntersect = (arr1 = [], arr2 = []) => {
    // console.log(arr1, arr2)
    return arr1.some(v => arr2.indexOf(v.toString()) > -1)
}

// 将对象转为querystring参数
export const makeQueryStr = (obj) => {
    const strs = []
    for (let key in obj) {
        strs.push(key + '=' + obj[key])
    }
    return strs.join('&')
}

/**
 * 倒计时
 * @param diff 倒计时时间/s
 * @param loadTime 运行时的当前时间
 * @param item 倒计时对象
 * @param callback 回调
 */
const countDown = function(diff, loadTime, item, callback) {
    function round($diff) {
        let dd = parseInt($diff / 1000 / 60 / 60 / 24, 10) // 计算剩余的天数
        let hh = parseInt(($diff / 1000 / 60 / 60) % 24, 10) // 计算剩余的小时数
        let mm = parseInt(($diff / 1000 / 60) % 60, 10) // 计算剩余的分钟数
        let ss = parseInt(($diff / 1000) % 60, 10) // 计算剩余的秒数

        function checkTime(_a) {
            let a = _a
            if (a < 10) {
                a = '0' + a
            }
            return a.toString()
        }

        item.conttainer = {
            dd: checkTime(dd),
            hh: checkTime(hh),
            mm: checkTime(mm),
            ss: checkTime(ss),
        }

        if (item.conttainer.dd > 0 || item.conttainer.hh > 0 || item.conttainer.mm > 0 || item.conttainer.ss > 0) {
            item.t = setTimeout(() => {
                callback && callback(item)
                round($diff - 1000)
            }, 1000)
        } else {
            callback && callback(item)
        }
    }
    round(diff - loadTime)
}

const install = (Vue, vm) => {
    console.log('初始化挂载($util)工具方法 util.js ')
    Vue.prototype.$util = { msg, prePage, modal, makeQueryStr, countDown }
}

export default install