164 lines
4.4 KiB
JavaScript
164 lines
4.4 KiB
JavaScript
/**
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* 参数处理
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* @param params 参数
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*/
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export function tansParams (params) {
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let result = ''
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for (const propName of Object.keys(params)) {
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const value = params[propName]
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var part = encodeURIComponent(propName) + "="
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if (value !== null && value !== "" && typeof (value) !== "undefined") {
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if (typeof value === 'object') {
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for (const key of Object.keys(value)) {
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if (value[key] !== null && value[key] !== "" && typeof (value[key]) !== 'undefined') {
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let params = propName + '[' + key + ']'
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var subPart = encodeURIComponent(params) + "="
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result += subPart + encodeURIComponent(value[key]) + "&"
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}
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}
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} else {
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result += part + encodeURIComponent(value) + "&"
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}
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}
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}
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return result
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}
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/**
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* 参数处理，避免小程序跳转10层后无法跳转
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* @param url
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*/
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export function navigateBackTo (url) {
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const backUrl = url.slice(1);
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const pages = getCurrentPages();
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const num = pages.length; // 当前页面栈总数
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const index = pages.findIndex(item => item.route === backUrl);
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const backnum = num - index - 1;
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uni.navigateBack({ delta: backnum });
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}
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/**
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* 深复制
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* @param {any} obj 需要复制的对象
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*/
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export function deepClone (obj) {
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if (typeof obj == 'object') {
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const objClone = Array.isArray(obj) ? [] : {}
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for (const key in obj) {
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if (Object.prototype.hasOwnProperty.call(obj, key)) {
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if (obj[key] && typeof obj[key] == 'object') {
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objClone[key] = deepClone(obj[key])
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} else {
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objClone[key] = obj[key]
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}
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}
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}
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return objClone
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}
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return obj
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}
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/**
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* @desc 时间戳转日期毫秒
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* @param {Date} format 时间格式 Y:年，M:月，D:天 h:小时，m:分钟，s:秒 默认:'Y/M/D h:m'
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*/
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export function formatDate (arg, format) {
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let now
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if (!arg) {
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return null
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} else {
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now = new Date(arg)
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}
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format = format || 'Y.M.D h:m'
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const year = now.getFullYear()
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let month = now.getMonth() + 1
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month = month >= 10 ? month : '0' + month
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let date = now.getDate()
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date = date >= 10 ? date : '0' + date
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let hour = now.getHours()
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hour = hour >= 10 ? hour : '0' + hour
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let minute = now.getMinutes()
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minute = minute >= 10 ? minute : '0' + minute
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let second = now.getSeconds()
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second = second >= 10 ? second : '0' + second
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return format
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.replace('Y', year)
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.replace('M', month)
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.replace('D', date)
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.replace('h', hour)
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.replace('m', minute)
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.replace('s', second)
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}
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/**
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* 复制文本（uni-app 剪贴板）
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* @param {string} copytext
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*/
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export function copyText (copytext) {
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uni.setClipboardData({
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data: copytext,
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success: () => {},
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})
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return { type: 'success', message: '复制成功' }
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}
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/**
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* hex转10进制
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* @param hexStr
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*/
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export function hex2int (hexStr) {
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let twoStr = parseInt(hexStr, 16).toString(2) // 将十六转十进制，再转2进制
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let bitNum = hexStr.length * 4 // 1个字节 = 8bit ，0xff 一个 "f"就是4位
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if (twoStr.length < bitNum) {
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while (twoStr.length < bitNum) {
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twoStr = "0" + twoStr
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}
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}
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if (twoStr.substring(0, 1) == "0") {
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// 正数
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const two = parseInt(twoStr, 2) // 二进制转十进制
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return two
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} else {
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// 负数
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let twoStr_unsign = ""
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let two = parseInt(twoStr, 2) - 1 // 补码：(负数)反码+1，符号位不变；相对十进制来说也是 +1，但这里是负数，+1就是绝对值数据-1
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twoStr = two.toString(2)
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twoStr_unsign = twoStr.substring(1, bitNum) // 舍弃首位(符号位)
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// 去除首字符，将0转为1，将1转为0 反码
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twoStr_unsign = twoStr_unsign.replace(/0/g, "z")
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twoStr_unsign = twoStr_unsign.replace(/1/g, "0")
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twoStr_unsign = twoStr_unsign.replace(/z/g, "1")
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two = -parseInt(twoStr_unsign, 2)
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return two
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}
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}
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/**
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* 10进制转16进制
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* @param hexStr
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*/
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export function int2hex (hexStr) {
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let hexInt = typeof hexStr == 'string' ? parseInt(hexStr, 10) : hexStr
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let hex = ''
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const LENGTH_04 = 4
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const LENGTH_15 = 15
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if (hexInt >= 0) {
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hex = hexInt.toString(16).toLocaleLowerCase()
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} else {
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let twoStr = (-hexInt - 1).toString(2)
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let sb = '000000000000000'
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twoStr = sb.slice(0, LENGTH_15 - twoStr.length) + twoStr
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// 将0转为1，将1转为0 反码
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twoStr = twoStr.replace(/0/g, "z")
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twoStr = twoStr.replace(/1/g, "0")
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twoStr = twoStr.replace(/z/g, "1")
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hex = parseInt(('1' + twoStr), 2).toString(16).toLocaleLowerCase()
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}
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// 长度不等于4 补全
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if (hex.length != LENGTH_04) {
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let sb = "0000"
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hex = sb.slice(0, LENGTH_04 - hex.length) + hex
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}
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return hex.toUpperCase()
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} |