正则表达式需要匹配字符串中的第一个路径而不是后续

Question

I am looking for a regex that will match the first line, but not the second. This is what I have /^github.com\\/[^\\\\\\n]+$/

github.com/reggi
github.com/reggi/example

https://regexr.com/3ld7o

 var patternA = /^github.com\\/[^\\\\\\n]+$/ var patternB = /^github\\.com\\/.+/ var patternC = /^github.com\\/[^\\/\\n]+$/ var examples = function (pattern) { return [ !!'github.com/reggi/genesis/soup'.match(pattern), !!'github.com/reggi/genesis'.match(pattern), !!'github.com/reggi'.match(pattern), ] } console.log(examples(patternA)) console.log(examples(patternB)) console.log(examples(patternC))

Answer 1

^github.com\/[^\/\n]+$

I think you just had the wrong type of slash escaped.

https://regexr.com/3ld8v

Answer 2

The pattern /^github\\.com\\/.+/ is enough for your need (remember to uncheck m - multiline when you test with regexr.com).

https://regexr.com/3ld7u