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What are the underlying data structures used for Redis?
...his is for a simple reason: for every Redis operation you'll find the time complexity in the documentation and, if you have the set of operations and the time complexity, the only other thing you need is some clue about memory usage (and because we do many optimizations that may vary depending on da...
Inserting image into IPython notebook markdown
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Please re-read the answer and comments. Your url will always start with 'files/', so if you have k.png next to your notebook, the URL would be src="files/k.png".
– minrk
Apr 24 '13 at 5:04
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Simulating group_concat MySQL function in Microsoft SQL Server 2005?
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How to make the hardware beep sound in Mac OS X 10.6
...tionality you're thinking of is an artifact of very old (pre-1990s) IBM PC-compatible hardware. Before most computers had sound cards, most machines had a small speaker or piezo buzzer connected to one of the channels of a timer chip. This could be used to generate simple tones or beeps. Even after ...
Java: Subpackage visibility?
...ava there is no concept of a subpackage, so odp.proj and odp.proj.test are completely separate packages.
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Shell command to sum integers, one per line?
I am looking for a command that will accept (as input) multiple lines of text, each line containing a single integer, and output the sum of these integers.
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Check if a key exists inside a json object
...e JS Object thisSession should be like
{
amt: "10.00",
email: "sam@gmail.com",
merchant_id: "sam",
mobileNo: "9874563210",
orderID: "123456",
passkey: "1234"
}
you can find the details here
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Verifying signed git commits?
With newer versions of git it's possible to sign individual commits (in addition to tags) with a PGP key:
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Viewing unpushed Git commits
How can I view any local commits I've made, that haven't yet been pushed to the remote repository? Occasionally, git status will print out that my branch is X commits ahead of origin/master , but not always.
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