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When to use a key/value store such as Redis instead/along side of a SQL database?
...nting stuff
Unique N items in a given amount of time
Real time analysis of what is happening, for stats, anti spam, or whatever
Pub/Sub
Queues
Caching
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SignalR: Why choose Hub vs. Persistent Connection?
...nd reading up on SignalR recently and, while I see a lot of explanation of what the difference is between Hubs and Persistent Connections I haven't been able to get my head around the next level, which is why would I choose one approach over the other?
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Can jQuery read/write cookies to a browser?
...ou're asking if that's the best way to do it.
It would probably depend on what you are doing. Typically you would have a user click what items they want to buy (ordering for example). Then they would hit a buy or checkout button. Then the form would send off to a page and process the result. You co...
Converting user input string to regular expression
...he RegExp constructor and the escaping of the double quotes is necessary. What I mean by a string in a variable is that you can just do var re = new RegExp(str); and str may contain double quotes or backslashes without a problem.
– Luis Paulo
Apr 17 '18 at 0:2...
Putting uncommitted changes at Master to a new branch by Git
...
#
# Changed but not updated:
# (use "git add <file>..." to update what will be committed)
#
# modified: linez.py
#
$
$ git stash
Saved working directory and index state \
"WIP on master: 934beef added the index file"
HEAD is now at 934beef added the index file
(To restore them type...
Sublime Text 2 multiple line edit
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@MattDMo YES!! That's exactly what I was looking for. Do you by chance know the keyboard shortcut to selecting all them like that? I'll look around and see if I can find it.
– Syperus
Mar 1 '14 at 2:40
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File changed listener in Java
... so-called "OVERFLOW" events that mean you missed something, but who knows what. It actually adds work on the programmer, for the often overkill benefit of native dir change notifications (if even supported by the filesystem, otherwise it defaults to polling internally anyway). It would have been n...
How to read lines of a file in Ruby
...EOL character along with the regular "\n", and "\r\n" from Windows, here's what I would do:
line_num=0
text=File.open('xxx.txt').read
text.gsub!(/\r\n?/, "\n")
text.each_line do |line|
print "#{line_num += 1} #{line}"
end
Of course this could be a bad idea on very large files since it means loa...
Rename all files in directory from $filename_h to $filename_half?
... I added example test session. Please try it. You probably have some typo. What is the output of ls ? what is the rename ... you try?
– Michał Šrajer
Apr 10 '14 at 9:27
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Create timestamp variable in bash script
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thanks, that's what I wanted : a timestamp as a variable to re-use in my script ! The shell syntax is so confusing.
– Poutrathor
Feb 1 '19 at 10:25
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