大约有 18,616 项符合查询结果(耗时:0.0278秒) [XML]

https://stackoverflow.com/ques... 

Rails 3: I want to list all paths defined in my rails application

I want to list all defined helper path functions (that are created from routes) in my rails 3 application, if that is possible. ...
https://stackoverflow.com/ques... 

Python memory usage of numpy arrays

I'm using python to analyse some large files and I'm running into memory issues, so I've been using sys.getsizeof() to try and keep track of the usage, but it's behaviour with numpy arrays is bizarre. Here's an example involving a map of albedos that I'm having to open: ...
https://stackoverflow.com/ques... 

lock(new object()) — Cargo cult or some crazy “language special case”?

I'm reviewing some code written by a consultant, and while dozens of red flags have already popped up, I can't wrap my head around the following snippet: ...
https://stackoverflow.com/ques... 

How does “304 Not Modified” work exactly?

My guess, if it's generated by the browser: 2 Answers 2 ...
https://stackoverflow.com/ques... 

What is the best way to determine the number of days in a month with JavaScript?

I've been using this function but I'd like to know what's the most efficient and accurate way to get it. 15 Answers ...
https://stackoverflow.com/ques... 

What is a wrapper class?

... Active Oldest Votes ...
https://stackoverflow.com/ques... 

How can I convert a file pointer ( FILE* fp ) to a file descriptor (int fd)?

I have a FILE * , returned by a call to fopen() . I need to get a file descriptor from it, to make calls like fsync(fd) on it. What's the function to get a file descriptor from a file pointer? ...
https://stackoverflow.com/ques... 

How do I strip non alphanumeric characters from a string and keep spaces?

...racters but keeps spaces. This is to clean search input before it hits the db. Here's what I have so far: 5 Answers ...
https://stackoverflow.com/ques... 

How can I alter a primary key constraint using SQL syntax?

...ave a table that is missing a column in its primary key constraint. Instead of editing it through SQL Server, I want to put this in a script to add it as part of our update scripts. ...
https://stackoverflow.com/ques... 

How to copy directories in OS X 10.7.3?

Hi I'm trying to copy my rails_projects directory from haseebjaved/Desktop/rails_projects to my home directory, which is haseebjaved. ...