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MongoDB with redis
...ere are a few examples of concrete usage of Redis on top of MongoDB.
Pre-2.2 MongoDB does not have yet an expiration mechanism. Capped collections cannot really be used to implement a real TTL. Redis has a TTL-based expiration mechanism, making it convenient to store volatile data. For instance, u...
Releasing memory in Python
...4 KiB pools, classed for allocation sizes at multiples of 8 bytes -- up to 256 bytes (512 bytes in 3.3). The pools themselves are in 256 KiB arenas, so if just one block in one pool is used, the entire 256 KiB arena will not be released. In Python 3.3 the small object allocator was switched to using...
How to open emacs inside bash
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209
Emacs takes many launch options. The one that you are looking for is
emacs -nw this will open...
Explain how finding cycle start node in cycle linked list work?
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21 Answers
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Can a for loop increment/decrement by more than one?
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265
Use the += assignment operator:
for (var i = 0; i < myVar.length; i += 3) {
Technically,...
Setting different color for each series in scatter plot on matplotlib
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280
I don't know what you mean by 'manually'. You can choose a colourmap and make a colour array ...
Microsoft Roslyn vs. CodeDom
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242
Disclaimer: I work for Microsoft on the Roslyn team.
CodeDom is a precursor to Roslyn, but is...
Convert string to a variable name
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124
assign is what you are looking for.
assign("x", 5)
x
[1] 5
but buyer beware.
See R FAQ 7.2...
mongoose vs mongodb (nodejs modules/extensions), which better? and why?
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122
Mongoose is higher level and uses the MongoDB driver (it's a dependency, check the package.json...
Is there an XSLT name-of element?
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edited Feb 25 '09 at 9:22
Robert Gould
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