存放常用的代码片段，随拿随用
// 多行文本超出打点, 参数为行数
@mixin textOver($num) {
overflow: hidden;
text-overflow: ellipsis;
display: -webkit-box;
-webkit-line-clamp: $num; //行数
-webkit-box-orient: vertical;
}// 绝对定位 水平居中 参数为高度
@mixin absHorizontalCenter($top) {
position: absolute;
top: $top;
left: 50%;
transform: translateX(-50%);
}
// 文本水平垂直居中 参数为高度
@mixin textCenter($height) {
height: $height;
line-height: $height;
text-align: center;
}// png小图标赋色 参数依次为:图标地址,颜色,宽度,高度
@mixin changePngColor($url,$color,$width,$height) {
height: $height;
width: $width;
overflow: hidden;
display: inline-block;
&:before {
content: '';
background: url($url) no-repeat;
display: block;
background-size:$width $height;
height: $height;
width: $width;
position: relative;
left: -$width;
border-right: $width solid transparent;
filter: drop-shadow($color $width 0px);
}
}// 示例
.icon {
@include changePngColor('./icon.png',red,25px,25px);
}// 设置cookie值
function setCookie(cname, cvalue, exdays) {
var d = new Date();
d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
var expires = "expires=" + d.toGMTString();
document.cookie = cname + "=" + cvalue + "; " + expires;
}
// 获取cookie值
function getCookie(cname) {
var name = cname + "=";
var ca = document.cookie.split(';');
for (var i = 0; i < ca.length; i++) {
var c = ca[i].trim();
if (c.indexOf(name) == 0) return c.substring(name.length, c.length);
}
return "";
}
// 检测cookie值
function checkCookie() {
var username = getCookie("username");
if (username != "") {
alert("Welcome again " + username);
} else {
username = prompt("Please enter your name:", "");
if (username != "" && username != null) {
setCookie("username", username, 365);
}
}
}// ip排序
function ipsSort(ips) {
// ips = ["10.10.15.130", "10.10.16.40", "127.0.0.1", "192.168.1.123", "192.168.1.38", "192.168.1.39"];
// 升序
ips.sort(function(a, b) {
a = a.trim(); // 空格会影响排序
b = b.trim();
var arr1 = a.split('.')
var arr2 = b.split('.')
for (var i = 0; i < 4; i++) {
if (arr1[i] > arr2[i]) {
return 1
} else if (arr1[i] < arr2[i]) {
return -1
}
}
})
return ips
}// 获取浏览器信息
function getBrowserInfo() {
var inBrowser = typeof window !== 'undefined';
var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
var UA = inBrowser && window.navigator.userAgent.toLowerCase();
var isIE = UA && /msie|trident/.test(UA);
var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
var isEdge = UA && UA.indexOf('edge/') > 0;
var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
var isPhantomJS = UA && /phantomjs/.test(UA);
var isFF = UA && UA.match(/firefox\/(\d+)/);
return {
inBrowser,
inWeex,
weexPlatform,
UA,
isIE,
isIE9,
isEdge,
isAndroid,
isIOS,
isChrome,
isPhantomJS,
isFF
}
}// 生成范围内的随机数
function getRandom(left, right) {
if (right < left) return 0;
if (left >= 0) {
return Math.random() * (right - left) + left;
}
}// 获取图片原始宽高
function loadImageAsync(url) {
return new Promise(function(resolve, reject) {
var image = new Image();
image.onload = function() {
var obj = {
w: image.naturalWidth,
h: image.naturalHeight
}
resolve(obj);
};
image.onerror = function() {
reject(new Error('Could not load image at ' + url));
};
image.src = url;
});
}/*
*功能: {在数字前以0补全指定位数}
*输入: {number} (原数据,指定位数)
*输出: {string} "04"
*/
function supNumber(num, x) {
if ((num + "").length < x) {
return "0" + num;
} else {
return num
}
}const path = require('path')
const fs = require('fs')
const basePath = 'D:/work/ruite/src/views/print/report' // 目标目录
function mapDir(dir, callback, finish) {
fs.readdir(dir, function(err, files) {
if (err) {
console.error(err)
return
}
files.forEach((filename, index) => {
let pathname = path.join(dir, filename)
fs.stat(pathname, (err, stats) => { // 读取文件信息
if (err) {
console.log('获取文件stats失败')
return
}
if (stats.isDirectory()) {
mapDir(pathname, callback, finish)
} else if (stats.isFile()) {
if (['.json', '.less'].includes(path.extname(pathname))) { // 排除 目录下的 json less 文件
return
}
callback && callback(filename)
// 读取文件内容
// fs.readFile(pathname, (err, data) => {
// if (err) {
// console.error(err)
// return
// }
// callback && callback(data)
// })
}
})
if (index === files.length - 1) {
finish && finish()
}
})
})
}
mapDir(
basePath,
function(file) {
console.log(file.split('.')[0])
// 读取文件后的处理
},
function() {
// console.log('xxx文件目录遍历完了')
}
)