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uniapp，常用工具函数

来源：博客园


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/* 处理文件路径 */export default { //  拨打电话    callPhone(phone) {        uni.makePhoneCall({            phoneNumber: phone //仅为示例        });    },    // 判断对象是否包含空值    /*     ** @return flag     ** @params 目标对象     */    paramsValidate(params) {        let flag = true;        for (var key in params) {            if (params[key] != "0" && !params[key]) {                return false; // 终止程序            }        }        return flag;    },    // 日期2023-01-03转几小时前，刚刚文字    timeToWords(stringTime) {        if (stringTime) {            // 获取当前            var minute = 1000 * 60;            var hour = minute * 60;            var day = hour * 24;            var week = day * 7;            var month = day * 30;            var time1 = new Date().getTime(); //当前的时间戳            var time2 = Date.parse(new Date(stringTime)); //指定时间的时间戳            var time = time1 - time2;            var 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;        }    },    // 判断是否是json格式    isJSON(str) {        if (typeof str == "string") {            try {                var obj = JSON.parse(str)                if (typeof obj == "object" && obj) {                    return true                } else {                    return false                }            } catch (e) {                return false            }        }    },    // 电话号码加密    phonePas(string, type) {        if (string) {            let str = string.substring(3, 7)            return string.replace(str, "****")        }    },    checkPhone(phone) {        let check = /^(?:(?:\+|00)86)?1[3-9]\d{9}$/g.test(phone);        return check    },    // 身份证校验    checkIdNumber(idNum) {        let c = /^\d{6}(18|19|20)\d{2}(0\d|10|11|12)([0-2]\d|30|31)\d{3}[\dXx]$/g.test(idNum);        return c    },    // 字符串截取,str，需要截取的字符串，num需要从第几位截取,endStr-结尾的字符串    substr(str, num, endStr) {        return `${str.substring(0,num)}${endStr}`    },    // 判断空对象    isEmpty(obj) {        return Object.keys(obj).length === 0    },    // 年月日转为日期格式    // 日期转换    formatYMD(data, format = "-") {        if (data) {            let time1 = data.split(" ")            let time = time1[0].replace("年", "-").replace("月", "-").replace("日", " ")            let arr = time.split("-")            let y = arr[0]            let m = arr[1] < 10 ? `0${arr[1]}` : arr[1]            let r = arr[2] < 10 ? `0${arr[2]}` : arr[2]            // 没有秒自动补全秒            if (time1[1].split(":").length < 3) {                return `${y}${format}${m}${format}${r}${time1[1]?time1[1]+":00":""}`            }            return `${y}${format}${m}${format}${r}${time1[1]?time1[1]:""}`        } else {            return null        }    },    // 日期格式转年月日    formatToYMD(data) {        if (data) {            let time1 = data.split(" ")            let time = time1[0].replace("-", "年").replace("-", "月")            let arr = time1[0].split("-")            let y = arr[0]            let m = arr[1] < 10 ? `${arr[1].split("0")[1]}` : arr[1]            let enr = arr[2]            let r = enr.split("0")[0] ? enr.split("0")[0] : enr.split("0")[1]            return `${y}年${m}月${r}日 ${time1[1]?time1[1]:""}`        } else {            return null        }    },    // 日期格式化    formatDate: function(dateA, format = "yyyy-MM-dd HH:mm:ss", splitType = "-") {        console.log("dateA", dateA)        const dateB = new Date(dateA).toJSON();        const date = new Date(+new Date(dateB) + 8 * 3600 * 1000).toISOString().replace(/T/g, " ").replace(            /\.[\d]{3}Z/, "")        let arr = date.split(" ")        let dates        switch (format) {            case "yyyy-MM-dd HH:mm:ss":                dates = date                break            case "yyyy-MM-dd":                // dates = arr[0]                dates = arr[0].replace("-", splitType).replace("-", splitType)                break            case "HH:mm:ss":                dates = arr[1]                break            case "yyyy-MM-dd HH:mm":                let arr2 = []                arr2.push(date.split(":")[0])                arr2.push(date.split(":")[1])                dates = arr2.join(":")                break            case "MM-dd":                let newArr = arr[0].split("-")                let result = []                if (newArr.length === 3) {                    newArr[1] < 10 ? newArr[1] = newArr[1].split("0")[1] : newArr[1]                    newArr[2] < 10 ? newArr[2] = newArr[2].split("0")[1] : newArr[2]                    result.push(newArr[1])                    result.push(newArr[2])                    dates = result.join(splitType)                }                break            case "HH:mm":                let newArr2 = arr[1].split(":")                let arr3 = []                arr3.push(newArr2[0])                arr3.push(newArr2[1])                dates = arr3.join(":")                break        }        return dates    },    // 获取当前月的最后一天    getLastDay(year, month) {        const isLeapYear = ((year % 4) == 0) && ((year % 100) != 0) || ((year % 400) == 0)        const maxDays = [1, 3, 5, 7, 8, 10, 12]        const middleDays = [4, 6, 9, 11]        month = Number(month)        if (month == 2) {            if (isLeapYear) {                return 29            } else {                return 28            }        } else if (maxDays.includes(month)) {            return 31        } else if (middleDays.includes(month)) {            return 30        }    },    // 删除对象属性值为空的属性,obj-传入的对象    removeProperty(obj) {        Object.keys(obj).forEach((item) => {            if (obj[item] === "" || obj[item] === undefined || obj[item] === null || obj[item] === "null") {                Reflect.deleteProperty(obj,item)            }        })        return obj    },    // base64转path    base64ToPath(base64) {        return new Promise(function(resolve, reject) {            if (typeof window === "object" && "document" in window) {                base64 = base64.split(",")                var type = base64[0].match(/:(.*?);/)[1]                var str = atob(base64[1])                var n = str.length                var array = new Uint8Array(n)                while (n--) {                    array[n] = str.charCodeAt(n)                }                return resolve((window.URL || window.webkitURL).createObjectURL(new Blob([array], {                    type: type                })))            }            var extName = base64.match(/data\:\S+\/(\S+);/)            if (extName) {                extName = extName[1]            } else {                reject(new Error("base64 error"))            }            var fileName = Date.now() + "." + extName            if (typeof plus === "object") {                var bitmap = new plus.nativeObj.Bitmap("bitmap" + Date.now())                bitmap.loadBase64Data(base64, function() {                    var filePath = "_doc/uniapp_temp/" + fileName                    bitmap.save(filePath, {}, function() {                        bitmap.clear()                        resolve(filePath)                    }, function(error) {                        bitmap.clear()                        reject(error)                    })                }, function(error) {                    bitmap.clear()                    reject(error)                })                return            }            if (typeof wx === "object" && wx.canIUse("getFileSystemManager")) {                var filePath = wx.env.USER_DATA_PATH + "/" + fileName                wx.getFileSystemManager().writeFile({                    filePath: filePath,                    data: base64.replace(/^data:\S+\/\S+;base64,/, ""),                    encoding: "base64",                    success: function() {                        resolve(filePath)                    },                    fail: function(error) {                        reject(error)                    }                })                return            }            reject(new Error("not support"))        })    }}function getLocalFilePath(path) {    if (path.indexOf("_www") === 0 || path.indexOf("_doc") === 0 || path.indexOf("_documents") === 0 || path.indexOf(            "_downloads") === 0) {        return path    }    if (path.indexOf("file://") === 0) {        return path    }    if (path.indexOf("/storage/emulated/0/") === 0) {        return path    }    if (path.indexOf("/") === 0) {        var localFilePath = plus.io.convertAbsoluteFileSystem(path)        if (localFilePath !== path) {            return localFilePath        } else {            path = path.substr(1)        }    }    return "_www/" + path}/* base64转文件路径 */export function base64ToPath(base64) {    return new Promise(function(resolve, reject) {        if (typeof window === "object" && "document" in window) {            base64 = base64.split(",")            var type = base64[0].match(/:(.*?);/)[1]            var str = atob(base64[1])            var n = str.length            var array = new Uint8Array(n)            while (n--) {                array[n] = str.charCodeAt(n)            }            return resolve((window.URL || window.webkitURL).createObjectURL(new Blob([array], {                type: type            })))        }        var extName = base64.match(/data\:\S+\/(\S+);/)        if (extName) {            extName = extName[1]        } else {            reject(new Error("base64 error"))        }        var fileName = Date.now() + "." + extName        if (typeof plus === "object") {            var bitmap = new plus.nativeObj.Bitmap("bitmap" + Date.now())            bitmap.loadBase64Data(base64, function() {                var filePath = "_doc/uniapp_temp/" + fileName                bitmap.save(filePath, {}, function() {                    bitmap.clear()                    resolve(filePath)                }, function(error) {                    bitmap.clear()                    reject(error)                })            }, function(error) {                bitmap.clear()                reject(error)            })            return        }        if (typeof wx === "object" && wx.canIUse("getFileSystemManager")) {            var filePath = wx.env.USER_DATA_PATH + "/" + fileName            wx.getFileSystemManager().writeFile({                filePath: filePath,                data: base64.replace(/^data:\S+\/\S+;base64,/, ""),                encoding: "base64",                success: function() {                    resolve(filePath)                },                fail: function(error) {                    reject(error)                }            })            return        }        reject(new Error("not support"))    })}

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