我有一个看起来像这样的字符串:1/ This is a string and it has some text on a new line2/ And then there's another string that has text only on one line532/ Another string that has some year on a new line 2020/xyz followed by some letters720/ This is a match on the same line wi...
initial-scale=1.0"> test14 // 要求是去除两端的空格 var str = " as aa bb "; // var str = str.replace(/^\s*|\s*$/g,"");//实现删除两端空格,保留中间的空格 var str = str.replace(/\s*/g,"");//实现删除所有的空格 console.log(str); 邮件匹配 var emailReg = /^\...
字符串 Live demo 但是如果环境不支持lookarounds，下面的正则表达式在大多数引擎中都可以工作：...