大约有 40,000 项符合查询结果（耗时：0.0465秒） [XML]
Ruby on Rails form_for select field with class
... beating my head against the wall on this one. I want to make a simple select tag using the f.select tag but nothing I do works. I put an example below:
...
What's a quick way to test to see a file exists?
I want to quickly check to see if a file exists in my iPhone app's Documents directory (or any path for that matter). I can enumerate through the directory's files, or I can try to open a specific file. What's the fastest way? I just need to know if the file is there or if it does not exist.
...
Detect if stdin is a terminal or pipe?
When I execute " python " from the terminal with no arguments it brings up the Python interactive shell.
6 Answers
...
Set custom attribute using JavaScript
I am using The DynaTree (https://code.google.com/p/dynatree) but I am having some problems and hoping someone can help..
3 ...
No startswith,endswith functions in Go?
Just curious to findout: why aren't there standard functions like startswith, endswith, etc as part of the standard libraries in the Go programming language?
...
Run JavaScript when an element loses focus
I have a standard HTML input that I want to run JavaScript code when it loses focus. Sadly my Google searches did not reveal how to do this.
...
emacs zoom in/zoom out
Is there a way to zoom in and out (dynamically change the font size, quite smoothly) on emacs?
3 Answers
...
How do I use a file grep comparison inside a bash if/else statement?
When our server comes up we need to check a file to see how the server is configured.
4 Answers
...
Generate full SQL script from EF 5 Code First Migrations
How do I use Entity Framework 5 Code First Migrations to create a full database script from the initial (empty) state to the latest migration?
...