Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
271 views
in Technique[技术] by (71.8m points)

正则,向后匹配报错?

function cloneFunction(func)?{

 const bodyReg = /(?<={)(.|\n)+(?=})/m

 const paramReg = /(?<=\().+(?=\)\s+{)/

 const funcString = func.toString()

 if (func.prototype)?{

 const param = paramReg.exec(funcString)

 const body = bodyReg.exec(funcString)

 if (body)?{

 if (param)?{

 const paramArr = param[0].split(',')

 return new Function(...paramArr, body[0])

 } else {

 return new Function(body[0])

 }

 } else {

 return null

 }

 } else {

 return eval(funcString)

 }

}

const bodyReg = /(?<={)(.| )+(?=})/m

const paramReg = /(?<=().+(?=)s+{)/

这两个表达式有向后匹配<= 报错,怎么修改,可以不用你 <=


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)
等待大神解答

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...