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EC2 instance types's exact network performance?
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Bandwidth is tiered by instance size, here's a comprehensive answer:
For t2/m3/c3/c4/r3/i2/d2 instances:
t2.nano = ??? (Based on the scaling factors, I'd expect 20-30 MBit/s)
t2.micro = ~70 MBit/s (qiita says 63 MBit/s) - ...
How to hash some string with sha256 in Java?
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You'd basically convert the string into bytes (e.g. using text.getBytes(StandardCharsets.UTF_8)) and then hash the bytes. Note that the result of the hash would also be arbitrary binary data, and if you want to represent that in a string, you should use base64 or hex... don't try to use the String(...
Possible heap pollution via varargs parameter
I understand this occurs with Java 7 when using varargs with a generic type;
5 Answers
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$watch an object
...his therefore means that watching complex objects will have adverse memory and performance implications.
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How can I break up this long line in Python?
...r strings outside of the code that uses them. It's a way to separate data and behavior. Your first option is to join string literals together implicitly by making them adjacent to one another:
("This is the first line of my text, "
"which will be joined to a second.")
Or with line ending contin...
How to convert a file into a dictionary?
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with is used here to handle the file clean up. When you leave the block (either just by normal execution flow or by an exception) there file will be automatically closed. You can read more about context-managers in Python here: effbot.org/zone/pyt...
How to get “their” changes in the middle of conflicting Git rebase?
...e master while on branch feature_x), during rebasing ours refers to master and theirs to feature_x.
As pointed out in the git-rebase docs:
Note that a rebase merge works by replaying each commit from the
working branch on top of the branch. Because of this, when
a merge conflict happens, t...
How do I remove a single file from the staging area (undo git add)?
...ith files already in the index. I make changes to several files, open Git and add these files to my staging area with "git add ."
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Equivalent VB keyword for 'break'
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In both Visual Basic 6.0 and VB.NET you would use:
Exit For to break from For loop
Wend to break from While loop
Exit Do to break from Do loop
depending on the loop type. See Exit Statements for more details.
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Determine command line working directory when running node bin script
I am creating a node command line interface. It is installed globally and uses a bin file to execute.
5 Answers
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