js正则表达式中如何添加变量匹配?
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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum=1.0,minimum=1.0,user-scalable=0" /> <script type="text/javascript"> let val="开发1"; const regExp = new RegExp(`(.*?)${val}(.*?)`, 'g'); const str = '欢迎来到BFW开发社区'; if (regExp.test(str)) { console.log("找到了"); }else{ console.log("没找到"); } </script> </head> <body> </body> </html>