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Sorting a vector in descending order
...s a bad idea. Use either the second one, or this:
struct greater
{
template<class T>
bool operator()(T const &a, T const &b) const { return a > b; }
};
std::sort(numbers.begin(), numbers.end(), greater());
That way your code won't silently break when someone decides numb...
Redis command to get all available keys?
...re a Redis command for fetching all keys in the database? I have seen some python-redis libraries fetching them. But was wondering if it is possible from redis-client.
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Where can I find the error logs of nginx, using FastCGI and Django?
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Errors are stored in the nginx log file. You can specify it in the root of the nginx configuration file:
error_log /var/log/nginx/nginx_error.log warn;
On Mac OS X with Homebrew, the log file was found by default at the following location:
/usr/local/var/log/nginx
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What are the differences between JSON and JavaScript object? [duplicate]
I am new to JSON and JavaScript objects.
3 Answers
3
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How to change text transparency in HTML/CSS?
I'm very new to HTML/CSS and I'm trying to display some text as like 50% transparent. So far I have the HTML to display the text with full opacity
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Table name as variable
...For dynamic queries you should generate the full SQL dynamically, and use sp_executesql to execute it.
Here is an example of a script used to compare data between the same tables of different databases:
static query:
SELECT * FROM [DB_ONE].[dbo].[ACTY]
EXCEPT
SELECT * FROM [DB_TWO].[dbo].[ACTY]
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increment date by one month
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edited Dec 3 '14 at 21:50
Joeri
1,4961616 ...
Is there a Subversion command to reset the working copy?
Is there a single Subversion command that would “reset” a working copy exactly to the state that’s stored in the repository? Something like git reset --hard or (ha, hard Git reset does not remove unversioned files either!) rm -rf wc && svn co <url> wc .
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Javascript - removing undefined fields from an object [duplicate]
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A one-liner using ES6 arrow function and ternary operator:
Object.keys(obj).forEach(key => obj[key] === undefined ? delete obj[key] : {});
Or use short-circuit evaluation instead of ternary: (@Matt Langlois, thanks for the info!)
Object.keys(obj).forEach(key => obj...
How to scale a UIImageView proportionally?
I have a UIImageView and the objective is to scale it down proportionally by giving it either a height or width.
17 Answer...