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SQL: How to get the count of each distinct value in a column?
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is there an virtual environment for node.js?
...er in rails, rather than rvm.
It's super easy. Just create a package.json file:
{ "name": "yourapp", "version": "0.0.1", "dependencies": {"jade": "0.4.1"}}
and then run:
npm bundle vendor
or if your npm version is >= 1.0 run:
npm install
to freeze into the vendor directory. and then use...
Reliable timer in a console application
...
Consider using a ManualResetEvent to block the main thread at the end of its processing, and call Reset() on it once the timer's processing has finished. If this is something that needs to run continuously, consider moving this ...
How to determine the Boost version on a system?
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Boost installed on OS X using homebrew has desired version.hpp file in /usr/local/Cellar/boost/<version>/include/boost/version.hpp (note, that the version is already mentioned in path).
I guess the fastest way to determine version on any UNIX-like system will be to search for boos...
Why is printing “B” dramatically slower than printing “#”?
...either eliminated, directed to /dev/null (NUL on Windows) or at least to a file. Displaying on any sort of Console is generally very expensive IO, and always distorts timings -- even if not as dramatically confusingly as this.
– Bob Kerns
Feb 23 '14 at 22:38
...
Mongoose (mongodb) batch insert?
...ts.
As Mongoose's author points out here, this method will bypass any validation procedures and access the Mongo driver directly. It's a trade-off you have to make since you're handling a large amount of data, otherwise you wouldn't be able to insert it to your database at all (remember we're talk...
How can I extend typed Arrays in Swift?
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Why you didn't use Iterator.Element in return type [Iterator.Element]?
– gaussblurinc
Oct 1 '16 at 19:22
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UITableViewHeaderFooterView: Unable to change background color
...se contentView.backgroundColor instead." then I tried this:
within the xib file the background color for header view was selected to clear color instead of default once I changed it to default the warning went away.
shar...
How to make a always full screen?
...;/style>
<![endif]-->
</head>
<body>
<div id="wrapper">some content</div>
</body>
This is probably the simplest solution to this problem. Only need to set four CSS attributes (although one of them is only to make IE happy).
...
How to add multiple columns to a table in Postgres?
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