大约有 47,000 项符合查询结果（耗时：0.0274秒） [XML]
Validating IPv4 addresses with regexp
I've been trying to get an efficient regex for IPv4 validation, but without much luck. It seemed at one point I had had it with (25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?(\.|$)){4} , but it produces some strange results:
...
How to validate IP address in Python? [duplicate]
What's the best way to validate that an IP entered by the user is valid? It comes in as a string.
11 Answers
...
PHP Regex to check date is in YYYY-MM-DD format
I'm trying to check that dates entered by end users are in the YYYY-MM-DD. Regex has never been my strong point, I keep getting a false return value for the preg_match() I have setup.
...
What is the best way to initialize a JavaScript Date to midnight?
What is the simplest way to obtain an instance of new Date() but set the time at midnight?
9 Answers
...
Find the PID of a process that uses a port on Windows
My service crash on startup with the classic:
7 Answers
7
...
How to validate an Email in PHP?
How can I validate the input value is a valid email address using php5. Now I am using this code
7 Answers
...
How do you make an array of structs in C?
I'm trying to make an array of structs where each struct represents a celestial body.
7 Answers
...
Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b') [duplicate]
Why is the result of the following two statements different?
6 Answers
6
...
What is the ultimate postal code and zip regex?
I'm looking for the ultimate postal code and zip code regex. I'm looking for something that will cover most (hopefully all) of the world.
...
Reduce, fold or scan (Left/Right)?
When should I use reduceLeft , reduceRight , foldLeft , foldRight , scanLeft or scanRight ?
3 Answers
...