Open my19940202 opened 5 years ago
// 零宽先行断言 var a = "I'm singing while you're dancing."; console.log(a.match(/\b\w+(?=ing\b)/g)); // 零宽后行断言 var a = "I am reading a book"; console.log(a.match(/(?<=\bre)\w+\b/g));
参考网页:http://deerchao.net/tutorials/regex/regex-1.htm
js 正则常用转义字符