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Why does printf not flush after the call unless a newline is in the format string?
...y does printf not flush after the call unless a newline is in the format string? Is this POSIX behavior? How might I have printf immediately flush every time?
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Rename Files and Directories (Add Prefix)
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rename '' <prefix> *
This finds the first occurrence of the empty string (which is found immediately) and then replaces that occurrence with your prefix, then glues on the rest of the file name to the end of that. Done.
For suffixes, you need to use the perl version or use find.
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What can you do in MSIL that you cannot do in C# or VB.NET? [closed]
...only in return types because of
call void [mscorlib]System.Console::Write(string)
or
callvirt int32 ...
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What is the syntax rule for having trailing commas in tuple definitions?
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That's a simple answer.
a = ("s") is a string
and
a = ("s",) is a tuple with one element.
Python needs an additional comma in case of one element tuple to, differentiate between string and tuple.
For example try this on python console:
a = ("s")
a = a + (1,...
Why is early return slower than else?
...king up are the
same object (which in this case they will be because short strings
that could be identifiers are interned so identical identifiers use
the exact same string).
Finally when the slot is full, the hash matches exactly, but the keys
are not the identical object, then and only then will P...
What is the difference between Python's list methods append and extend?
...st.
my_list.append(object)
Whatever the object is, whether a number, a string, another list, or something else, it gets added onto the end of my_list as a single entry on the list.
>>> my_list
['foo', 'bar']
>>> my_list.append('baz')
>>> my_list
['foo', 'bar', 'baz']...
Selecting multiple columns in a pandas dataframe
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The column names (which are strings) cannot be sliced in the manner you tried.
Here you have a couple of options. If you know from context which variables you want to slice out, you can just return a view of only those columns by passing a list into the...
How to write one new line in Bitbucket markdown?
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this places an extra blank link between line1 and line2 in bitbucket readme.md files
– simpleuser
Jul 17 '19 at 21:34
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Concurrent vs serial queues in GCD
... running in background thread")
}
let imgURL = URL(string: "https://upload.wikimedia.org/wikipedia/commons/0/07/Huge_ball_at_Vilnius_center.jpg")!
let _ = try! Data(contentsOf: imgURL)
print("\(i) completed downloading")
}
}
}
Task wil...
String comparison using '==' vs. 'strcmp()'
...=== only returns true or false, it doesn't tell you which is the "greater" string.
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