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- const formatTime = date => {
- const year = date.getFullYear()
- const month = date.getMonth() + 1
- const day = date.getDate()
- const hour = date.getHours()
- const minute = date.getMinutes()
- const second = date.getSeconds()
- return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')
- }
- const formatNumber = n => {
- n = n.toString()
- return n[1] ? n : '0' + n
- }
- /**
- * 随机生成指定长度的字符串
- * @param length
- * @returns {string}
- */
- function randomString(length = 32) {
- const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
- const maxPos = chars.length
- let _string = ''
- for (let i = 0; i < length; i++) {
- _string += chars.charAt(Math.floor(Math.random() * maxPos))
- }
- return _string
- }
- function guid() {
- return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
- var r = Math.random() * 16 | 0,
- v = c == 'x' ? r : (r & 0x3 | 0x8);
- return v.toString(16);
- });
- }
- function findChildren(array, path) {
- var paths = path.replace(/^(\s|,)+|(\s|,)+$/g, '').split(',')
- if (paths.length === 0) return
- if (paths.length === 1) return array.filter(n => n.id === parseInt(paths[0]))[0]
- else {
- var child = array.filter(n => n.id === parseInt(paths[0]))[0].children
- var subpaths = paths
- subpaths.shift()
- return findChildren(child, subpaths.join(','))
- }
- }
- /*用正则表达式实现html转码*/
- function htmlEncodeByRegExp(str) {
- var s = "";
- if (str.length == 0) return "";
- s = str.replace(/&/g, "&");
- s = s.replace(/</g, "<");
- s = s.replace(/>/g, ">");
- s = s.replace(/ /g, " ");
- s = s.replace(/\'/g, "'");
- s = s.replace(/\"/g, """);
- return s;
- }
- /*用正则表达式实现html解码*/
- function htmlDecodeByRegExp(str) {
- var s = "";
- if (str.length == 0) return "";
- s = str.replace(/&/g, "&");
- s = s.replace(/</g, "<");
- s = s.replace(/>/g, ">");
- s = s.replace(/ /g, " ");
- s = s.replace(/'/g, "\'");
- s = s.replace(/"/g, "\"");
- return s;
- }
- module.exports = {
- formatTime: formatTime,
- randomString: randomString,
- guid: guid,
- findChildren: findChildren,
- htmlEncodeByRegExp: htmlEncodeByRegExp,
- htmlDecodeByRegExp: htmlDecodeByRegExp
- }
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