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Running V8 Javascript Engine Standalone
...$> scons
$> g++ ./samples/shell.cc -o v8-shell -I include libv8.a
Now, we have a standalone binary called v8-shell.
Running the console:
$> ./v8-shell
V8 version 2.0.2
> var x = 10;
> x
10
> function foo(x) { return x * x; }
> foo
function foo(x) { return x * x; }
> qu...
How do I check if a string is unicode or ascii?
...You can tell which using code something like this:
def whatisthis(s):
if isinstance(s, str):
print "ordinary string"
elif isinstance(s, unicode):
print "unicode string"
else:
print "not a string"
This does not distinguish "Unicode or ASCII"; it only distinguish...
How can I get the source code of a Python function?
...
If the function is from a source file available on the filesystem, then inspect.getsource(foo) might be of help:
If foo is defined as:
def foo(arg1,arg2):
#do something with args
a = arg1 + arg2
...
How to get IntPtr from byte[] in C#
...managed memory.
Edit: Also, as Tyalis pointed out, you can also use fixed if unsafe code is an option for you
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LINQ: Select an object and change some properties without creating a new object
... car.Color = color;
yield return car;
}
}
}
Now you can use it as follows.
cars.Where(car => car.Color == Color.Blue).ChangeColorTo(Color.Red);
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How do I convert this list of dictionaries to a csv file?
...
Does not work if first list item does not contain all keys
– greg121
Jan 13 '16 at 10:18
61
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Drop all tables whose names begin with a certain string
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You may need to modify the query to include the owner if there's more than one in the database.
DECLARE @cmd varchar(4000)
DECLARE cmds CURSOR FOR
SELECT 'drop table [' + Table_Name + ']'
FROM INFORMATION_SCHEMA.TABLES
WHERE Table_Name LIKE 'p...
Reading an Excel file in PHP [closed]
... can handle .xls-files, but not .xlsx files. PHPExcel can handle a lot of different formats (including .xls and .xlsx) (github.com/PHPOffice/Phpexcel) and is in stable version. PHPSpreadsheet is a further development of PHPExcel but is not stable (as I'm writing this): github.com/PHPOffice/PhpSpread...
How to dump a dict to a json file?
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Tip : If you don't want to write to a file, and only see the output, try redirecting it to stdout: json.dump('SomeText', sys.stdout)
– Arindam Roychowdhury
Dec 14 '16 at 8:48
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Should I use encodeURI or encodeURIComponent for encoding URLs?
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If you're encoding a string to put in a URL component (a querystring parameter), you should call encodeURIComponent.
If you're encoding an existing URL, call encodeURI.
...