match one or more contiguous white space characters in a string. can be used in JS, for example, to replace any white space characters (tab, space, newline), as well as multiple contiguous WS chars, with a single space character. var text = “1 2 \t \n 3”; text = text.replace(/\s+/g, '...

email regex

user for bcl this helps to find missing semicolons to trigger an error

remove emojis

URL detection

单行注释

多行注释

Split number and string exp. data as below 17091327 Ren Xian Xtrcb County Bank Corporation Limited 50156 0862315402 19D 17091342 BaoDing QingYuan District Xtrcb Rural Bank Corporation Limit40156 0862315401 19D

Patternmatching of several Daterange Patterns Quarter 2021-Q2 Range...

starts with number and ends with string or number starts with +ve, -ve or decimal number

Rackerrank regex prepare

Matches the image mime types. E.g image/png, image/jpeg, etc.

Python does not support conditionals using lookaround, even though Python does support lookaround outside conditionals. (?(?=regex) then|else) is illegal in python (?=regex)then|(?!regex)else - this works. madness details in the test strings

reverses order when code is followed by comments (comments prepended with ## )

hi

select 09|10

Regular expression to match all C style comments.

Not Funny vs Funny - need to match for both cases

匹配md图片

匹配图片链接