大约有 5,213 项符合查询结果（耗时：0.0219秒） [XML]
Why does the C++ STL not provide any “tree” containers?
Why does the C++ STL not provide any "tree" containers, and what's the best thing to use instead?
14 Answers
...
Passing command line arguments to R CMD BATCH
I have been using R CMD BATCH my_script.R from a terminal to execute an R script. I am now at the point where I would like to pass an argument to the command, but am having some issues getting it working. If I do R CMD BATCH my_script.R blabla then blabla becomes the output file, rather th...
Check if Internet Connection Exists with Javascript? [duplicate]
How do you check if there is an internet connection using Javascript? That way I could have some conditionals saying "use the google cached version of JQuery during production, use either that or a local version during development, depending on the internet connection".
...
How do I push a local repo to Bitbucket using SourceTree without creating a repo on bitbucket first?
Is there a way to import my local git repos to SourceTree and push them to my Bitbucket account, having new repos identical to my local repos be created on my account? Or do I have to make a repo online first and push to that? Github has a way to publish your local repos directly from it's client, a...
Where can I find documentation on formatting a date in JavaScript?
I noticed that JavaScript's new Date() function is very smart in accepting dates in several formats.
35 Answers
...
Using a constant NSString as the key for NSUserDefaults
...'m using NSUSerDefaults to store user preferences. I remember reading somewhere that setting the keys as constants is a good idea - and I agree. The following code is what I currently have:
...
Programmatically retrieve memory usage on iPhone
I'm trying to retrieve the amount of memory my iPhone app is using at anytime, programmatically. Yes I'm aware about ObjectAlloc/Leaks. I'm not interested in those, only to know if it's possible to write some code and get the amount of bytes being used and report it via NSLog.
...
How can I list (ls) the 5 last modified files in a directory?
I know ls -t will list all files by modified time. But how can I limit these results to only the last n files?
5 Answe...
Multiple select statements in Single query
I am generating a report in php (mysql),
6 Answers
6
...
How to perform a mysqldump without a password prompt?
I would like to know the command to perform a mysqldump of a database without the prompt for the password.
13 Answers
...