JavaScript正则的相关内容

文章 2022-02-17 来自：开发者社区

Node.js 性能平台支持死循环和正则攻击定位

Node.js 应用里面，常见性能问题从表现上来看有这么几类(Node.js 性能平台都提供了对应解决方案)： CPU 飚高：做 CPU Prfiling 定位热点函数内存泄露：堆快照/heaptimeline/heapprofile进行定位 CPU/内存使用都不高，但是 QPS 上不去或者 RT 很长：trace进行定位 CPU 飚高的情况又可分为两类：仍然可以继续处理业务，只是 R...

文章 2022-02-16 来自：开发者社区

js获取url路径包括正则匹配规则来获取

常规获取方法： var protocol = window.location.protocol;  // "http:" var host = window.location.host;  //"localhost" or "www.baidu.com" var pathname = window.location.pathname;  // "/dkrl/servi...

文章 2022-02-16 来自：开发者社区

js截取相应的域名----正则匹配法和校验Url 正则表达式

js截取相应的域名----正则匹配法和校验Url 正则表达式用javascript截取相应的域名方法两种，供大家参考 1.方法1： [javascript] view plain copy function domainURI(str){ var durl=/http:\/\/([^\/]+)\//i; domain = str.m...

问答 2022-02-15 来自：开发者社区

需求：1. 最小0.012. 最大99999.993. 保留2位小数点一：if (!(/(^[1-9]\d*(\.\d{1,2})?$)|(^0(\.\d{1,2})?$)/.test(row.tempPirce)) || row.tempPirce > 99999.99 || Number(row.tempPirce) === 0) return this.$Message.error(....

问答 2021-10-19 来自：开发者社区

js要怎么利用正则只得到字符串‘/aaaa/bbbb/ccccc‘的'/aaaaa'这部分呢?

问答 2020-06-22 来自：开发者社区

关于在js中的正则公式报错 <b> ?报错

str=[{"name":"xxx贸易有限公司","value":1731}] str=str.replace(/"(\w+)":/g,"$1:"); //这条正则报错 str=str.replace(/\"/g,"'"); //这条正常最终显示[{name:'xxx贸易有限公司',value:1731}] 在Eclipse运行中正常，在手机也在正常，但在MAC电脑浏览器上那条str.r...

问答 2020-06-22 来自：开发者社区

js正则如何匹配前后都无文字的空格？?报错

如果是简单的 \s+ 那么英文或者文字间的空格也会匹配到, 我想用正则匹配前后都没有文字（包括英文数字和中文）的空格？该如何写？这些是我试过有问题的写法： 1、/(^[^\x00-\xff]*)|([^\x00-\xff]*$)/g; 2、利用正前向...

问答 2020-06-14 来自：开发者社区

有大量的js脚本需要通过java输出，但是里面的正则头痛：报错

if(typeof o =="string") return "\""+o.replace(/([\'\"\\])/g,"\\$1").replace(/(\n)/g,"\\n").replace(/(\r)/g,"\\r").replace(/(\t)/g,"\\t")+"\"";    求通过java的stringbuffer拼接如上的字符串输出到控制台或者有没有通用的方...

问答 2020-06-14 来自：开发者社区

js实在玩不转啊！求大神帮忙写个js正则，感激不尽！！：报错

大神们，js小弟实在是玩不转啊现在需要一个正则匹配字母、数字、符号(".","-","_","+")(符号可以包括英文点、英文横杠、英文下划线、加号)，用来做密码验证的，求大神指点。

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