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Querying DynamoDB by date
...ps on the range key only. The hash key is required such that the service knows which partition to look in to find the data.
You can of course perform a scan operation to filter by the date value, however this would require a full table scan, so it is not ideal.
If you need to perform an indexed l...
Use CSS3 transitions with gradient backgrounds
...radient transitions with un-prefixed new syntax [e.g. radial-gradient(...)]now confirmed to work (again?) on Microsoft Edge 17.17134. I don't know when this was added. Still not working on latest Firefox & Chrome / Windows 10.
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How to get year/month/day from a date object?
...levithan.com/archives/date-time-format.
With that you could write:
var now = new Date();
now.format("yyyy/mm/dd");
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What's the best visual merge tool for Git? [closed]
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@naxa Meld now has a Windows installer: code.google.com/p/meld-installer
– Roman
Mar 18 '13 at 11:01
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LLVM vs clang on OS X
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LLVM originally stood for "low-level virtual machine", though it now just stands for itself as it has grown to be something other than a traditional virtual machine. It is a set of libraries and tools, as well as a standardized intermediate representation, that can be used to help build co...
Changing variable names in Vim
...the variable usage. Press gd. Which means - move cursor to the definition.
Now Press [{ - this will bring you to the scope begin.
Press V - will turn on Visual Line selection.
Press % - will jump to the opposite } thus will select the whole scope.
Press :s/ - start of the substitute command.
<C-R...
Add number of days to a date
...nds since January 1 1970 00:00:00 UTC), relative to the timestamp given in now, or the current time if now is not supplied.
while date
Returns a string formatted according to the given format string using the given integer timestamp or the current time if no timestamp is given.
See the man...
When to use thread pool in C#? [closed]
...d tasks.
Normally a pool consists of 2 threads per processor (so likely 4 nowadays), however you can set up the amount of threads you want, if you know how many you need.
Edit: The reason to make your own threads is because of context changes, (thats when threads need to swap in and out of the pr...
Remove .php extension with .htaccess
...-11-14 - Fixed the above snippet to incorporate nicorellius's observation
Now requests for hi.txt (and anything else) are successful, requests to example.com/test will return the processed version of test.php, and index.php files will work again.
I must give credit where credit is due for this sol...
How to find memory leak in a C++ code/project?
...house a string.
delete [] str; // Clear those 30 bytes and make str point nowhere.
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Reallocate memory only if you've deleted. In the code below, str acquires a new address with the second allocation. The first address is lost irretrievably, and so are the 30 bytes that it pointed to. Now they'r...