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Which characters are valid/invalid in a JSON key name?
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@mtraceur I was wondering the same thing. I tested in chrome's console and it doesn't like a key with null terminators in it. puu.sh/zJMIS/3d15c6d8e5.png It may not be mentioned in the spec, but don't expect parsers to accept it. best to avoid any ascii control charac...
How can I reverse a NSArray in Objective-C?
...nal array is not mutated. Apple documents that immutability should not be tested for at run time, but be assumed based on the returned type, so returning an NSMutableArray in this case is perfectly correct code.
– Peter N Lewis
Feb 26 '15 at 0:06
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Is it possible to have multiple statements in a python lambda expression?
...an just using sorted(), so only measurements can tell which solution is fastest in your case. heapq.nsmallest() does however have a complexity of O(k * log(n) + n) I think, with n the length of the list and k the number of smallest items you wish to extract. O(n) to heapify the list and k times O(lo...
Eclipse - no Java (JRE) / (JDK) … no virtual machine
...anywhere on your disk.
I would recommend to always run Eclipse with the lastest JRE possible (to benefit from the latest hotspot evolutions).
You can:
Reference that exact JRE path in your eclipse.ini.
Copy any JRE of your in your <eclipse>/jre directory.
In both cases, no PATH to update.
T...
How to fix Git error: object file is empty?
...van-N61Jq:~/workspace/mcmc-chapter$ git add tex/sept2012_code/example-code-testing.R
nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git commit -a -m "adding in the example code"
[master 385c023] adding in the example code
1 file changed, 331 insertions(+)
create mode 100644 tex/sept2012_code/...
How to get the size of a JavaScript object?
...nt" listing mode.
In the attached screenshot, I created an object called "testObj" on the window. I then located in the profiler (after making a recording) and it shows the full size of the object and everything in it under "retained size".
More details on the memory breakdowns.
In the above sc...
How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...simple:
-- THIS IS WRONG. DO NOT COPY IT. It's an EXAMPLE.
BEGIN;
UPDATE testtable
SET somedata = 'blah'
WHERE id = 2;
-- Remember, this is WRONG. Do NOT COPY IT.
INSERT INTO testtable (id, somedata)
SELECT 2, 'blah'
WHERE NOT EXISTS (SELECT 1 FROM testtable WHERE testtable.id = 2);
COMMIT;
th...
Auto Resize Image in CSS FlexBox Layout and keeping Aspect Ratio?
...ping or max sizes anywhere you want):
http://fofwebdesign.co.uk/template/_testing/scale-img/scale-img.htm
The only way this is possible with images is if we FORGET about your second iimage, and the cells have a fixed height, and FORTUNATELY, judging by your sample images, the height stays the same...
What is the real overhead of try/catch in C#?
...!_user.Rights.Contains(rightName))
throw new Exception();
}
When the test database got fuller with test data, this lead to a very visible slowdown while openening new forms etc.
So I refactored it to the following, which - according to later quick 'n dirty measurements - is about 2 orders of ...
Checkout one file from Subversion
... This is the superior method if you just want to grab the latest version of a particular script as part of a deploy, or something.
– william.berg
Aug 2 '13 at 11:44
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