大约有 18,616 项符合查询结果（耗时：0.0249秒） [XML]
Validate that a string is a positive integer
I would like the simplest fail-safe test to check that a string in JavaScript is a positive integer.
13 Answers
...
urllib2.HTTPError: HTTP Error 403: Forbidden
I am trying to automate download of historic stock data using python. The URL I am trying to open responds with a CSV file, but I am unable to open using urllib2. I have tried changing user agent as specified in few questions earlier, I even tried to accept response cookies, with no luck. Can you pl...
How to hash a string into 8 digits?
Is there anyway that I can hash a random string into a 8 digit number without implementing any algorithms myself?
4 Answers...
Rails: convert UTC DateTime to another time zone
In Ruby/Rails, how do I convert a UTC DateTime to another time zone?
6 Answers
6
...
How to Validate a DateTime in C#?
I doubt I am the only one who has come up with this solution, but if you have a better one please post it here. I simply want to leave this question here so I and others can search it later.
...
Learning Regular Expressions [closed]
I don't really understand regular expressions. Can you explain them to me in an easy-to-follow manner? If there are any online tools or books, could you also link to them?
...
How to swap keys and values in a hash
How do I swap keys and values in a Hash?
6 Answers
6
...
How to exit from PostgreSQL command line utility: psql
What command or short key can I use to exit the PostgreSQL command line utility psql ?
9 Answers
...
How to remove non-alphanumeric characters?
I need to remove all characters from a string which aren't in a-z A-Z 0-9 set or are not spaces.
9 Answers
...