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Argparse: Required arguments listed under “optional arguments”?
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Parameters starting with - or -- are usually considered optional. All other parameters are positional parameters and as such required by design (like positional function arguments). It is possible to require optional arguments, but this is a bit against their desig...
Changing all files' extensions in a folder with one command on Windows
...ropriate extensions. It will change from XXX to YYY. If you want to change all extensions, just use the wildcard again:
ren *.* *.YYY
One way to make this work recursively is with the FOR command. It can be used with the /R option to recursively apply a command to matching files. For example:
fo...
Is there any haskell function to concatenate list with separator?
...gonkai Not sure what exactly you're referring to, but yes, these functions all allow arbitrary strings as both the separator and the elements. For example, intercalate "," ["some", "", "string"] = "some,,string" and intercalate "" ["foo", "bar"] = "foobar"
– Niklas B.
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Is gcc std::unordered_map implementation slow? If so - why?
...t tms start;
struct tms finish;
long ticks_per_second;
times(&start);
t();
times(&finish);
ticks_per_second = sysconf(_SC_CLK_TCK);
std::cout << "elapsed: "
<< ((finish.tms_utime - start.tms_utime
+ finish.tms_stime - ...
Get selected value in dropdown list using JavaScript
... would returns as what the .SelectedValue in asp.net returns. Thanks for example given!
– Fire Hand
Jul 6 '09 at 7:56
1
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Get the data received in a Flask request
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Here's an example of parsing posted JSON data and echoing it back.
from flask import Flask, request, jsonify
app = Flask(__name__)
@app.route('/foo', methods=['POST'])
def foo():
data = request.json
return jsonify(data)
To ...
Can lambda functions be templated?
...ear and now provides Polymorphic lambdas with the same syntax as in this example. Some major compilers already implement it.
At it stands (in C++11), sadly no. Polymorphic lambdas would be excellent in terms of flexibility and power.
The original reason they ended up being monomorphic was becaus...
Cocoa: What's the difference between the frame and the bounds?
UIView and its subclasses all have the properties frame and bounds . What's the difference?
12 Answers
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Random String Generator Returning Same String [duplicate]
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Thanks RCIX, I went with your example and it's working!
– PushCode
Jul 13 '09 at 23:09
46
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What happens to global and static variables in a shared library when it is dynamically linked?
...ther modules. This means that you will get linker errors if you try, for example, to create an executable that is supposed to use an extern variable defined in a DLL, because this is not allowed. You would need to provide an object file (or static library) with a definition of that extern variable a...