大约有 42,000 项符合查询结果（耗时：0.0577秒） [XML]
How to “pretty” format JSON output in Ruby on Rails
...client-side debugging as any tools worth their salt (eg. Firebug) already handle prettyprinting JSON.
– lambshaanxy
Sep 20 '11 at 3:37
8
...
“Cloning” row or column vectors
... into a 2D array with length 1 in the first axis (vertical on your screen) and length 3 in the second axis (horizontal on your screen). Transposing then makes it have length 3 in the first axis and length 1 in the second axis. A tile shape of (1, 3) copies this column over three times, which is why ...
Creating an abstract class in Objective-C
...ct class - by making the methods/ selectors call doesNotRecognizeSelector: and therefore raise an exception making the class unusable.
For example:
- (id)someMethod:(SomeObject*)blah
{
[self doesNotRecognizeSelector:_cmd];
return nil;
}
You can also do this for init.
...
git --git-dir not working as expected
... at the same time giving defaults that make the most sense VS having a command not work at all.
– Nay
Jan 18 '12 at 6:34
3
...
Insert new column into table in sqlite?
...ty , rate . Now I need to add a new column COLNew in between the name and qty columns. How do I add a new column in between two columns?
...
Reloading module giving NameError: name 'reload' is not defined
...ave already imported in Python 3. I know that you only need to import once and executing the import command again won't do anything.
...
Tracing XML request/responses with JAX-WS
...ublished with JAX-WS reference implementation (the one included in JDK 1.5 and better) ?
Being able to do that via code is what I need to do.
Just having it logged to a file by clever logging configurations would be nice but enough.
...
setState vs replaceState in React.js
I am new to React.js Library and I was going over some of the tutorials and I came across:
4 Answers
...
Simple regular expression for a decimal with a precision of 2
...t:
\d+(\.\d{1,2})?
Both assume that both have at least one digit before and one after the decimal place.
To require that the whole string is a number of this form, wrap the expression in start and end tags such as (in Perl's form):
^\d+(\.\d{1,2})?$
To match numbers without a leading digit be...
How to add a right button to a UINavigationController?
...ll might be quite a while before it displays, no point in doing work early and tying up memory.
- (void)viewDidLoad {
[super viewDidLoad];
UIBarButtonItem *anotherButton = [[UIBarButtonItem alloc] initWithTitle:@"Show" style:UIBarButtonItemStylePlain target:self action:@selector(refreshPropert...