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Why do we need Abstract factory design pattern?
...of the factory pattern?
DDD Book, Eric Evans: Please explain what is meant by "The FACTORY should be abstracted to the type desired rather than the concrete class(es) created."
DI container, factory, or new for ephemeral objects?
How to unit test instance creation?
What is the best strategy for Depe...
Rename specific column(s) in pandas
...ng a dictionary and perform the list-comprehension with it's get operation by setting default value as the old name:
col_dict = {'gdp': 'log(gdp)', 'cap': 'cap_mod'} ## key→old name, value→new name
df.columns = [col_dict.get(x, x) for x in df.columns]
Timings:
%%timeit
df.rename(columns={...
Lambda capture as const reference?
Is it possible to capture by const reference in a lambda expression?
8 Answers
8
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Where can I locate themes for VS2012
...
As mentioned by ElYusubov below, this is more easily done via NuGet.
– David Yates
Jun 14 '13 at 15:11
add a comm...
.Net HttpWebRequest.GetResponse() raises exception when http status code 400 (bad request) is return
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The contents of the stream returned by GetResponseStream() on the response attached to the WebException is just the name of the status code (e.g. "Bad Request") rather than the response actually returned by the server. Is there any way to get this information?
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ruby send method passing multiple parameters
Trying to create objects and call methods dynamically by
2 Answers
2
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How to Rotate a UIImage 90 degrees?
...ageOrientationUp (portrait) that I would like to rotate counter-clockwise by 90 degrees (to landscape). I don't want to use a CGAffineTransform . I want the pixels of the UIImage to actually shift position. I am using a block of code (shown below) originally intended to resize a UIImage to do ...
How do I convert a Vector of bytes (u8) to a string
...
To convert a slice of bytes to a string slice (assuming a UTF-8 encoding):
use std::str;
//
// pub fn from_utf8(v: &[u8]) -> Result<&str, Utf8Error>
//
// Assuming buf: &[u8]
//
fn main() {
let buf = &[0x41u8, 0x41...
Android: HTTP communication should use “Accept-Encoding: gzip”
... find out: (1) some google services require the user agent string provided by the client to contain the string gzip to really enable gzip compression. (2) keep in mind that the server may not gzip the response if it is too small...
– sven
Jun 17 '11 at 7:30
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Listview Scroll to the end of the list after updating the list
...t is scrolled all the way to the bottom, after I have updated the listview by using listAdapter, so that it displays the last element entered in the list. How can I do this ?
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