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What's the difference between std::move and std::forward
...se of X, or a reference to a Base of X. Y can be X, or a reference to X. One can not cast away cv-qualifiers with forward, but one can add cv-qualifiers. Y can not be a type that is merely convertible from X, except via an accessible Base conversion.
If Y is an lvalue reference, the result will...
What's the difference between Invoke() and BeginInvoke()
...es over using Invoke. Both executes processes in the background, just that one is on the same thread, the other on different thread?
– yeeen
Oct 8 '10 at 9:23
2
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Add missing dates to pandas dataframe
...
There is one problem (or bug) with reindex though: it doesn't work with dates before 1/1/1970, so in this case df.resample() works perfectly.
– Sergey Gulbin
Jul 27 '17 at 4:35
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Change values while iterating
...answered Apr 11 '13 at 15:11
nemonemo
44.3k1010 gold badges115115 silver badges118118 bronze badges
...
Django Setup Default Logging
...
As you said in your answer, Chris, one option to define a default logger is to use the empty string as its key.
However, I think the intended way is to define a special logger under the root key of the logging configuration dictionary. I found this in the Pyt...
Add unique constraint to combination of two columns
...roves it. You should try it out before assuming the above ideas only treat one column or the other as opposed to the combination...
USE tempdb;
GO
CREATE TABLE dbo.Person
(
ID INT IDENTITY(1,1) PRIMARY KEY,
Name NVARCHAR(32),
Active BIT,
PersonNumber INT
);
GO
ALTER TABLE dbo.Person
AD...
When serving JavaScript files, is it better to use the application/javascript or application/x-javas
... This question from a few months ago says the exact opposite. Someone is mistaken :) "Kelly's right, browsers tend to trust the MIME type sent with the response headers over the type attribute of the script tag" stackoverflow.com/questions/189850/…
– Marco
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How do I fix blurry text in my HTML5 canvas?
...match it's stated width on the iPad display. Fortunately for us, this is done automatically by the browser. On the other hand, this is also the reason why you see less definition on images and canvas elements that were made to directly fit their visible area. Because your canvas only knows how to...
What is the AppDelegate for and how do I know when to use it?
I'm just beginning to work on iPhone apps. How do I know when I should be putting stuff in AppDelegate versus a custom class? Is there a rule or any type of analogy with another programming language like Python or PHP that uses an AppDelegate like pattern?
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Android: upgrading DB version and adding new table
...// 2 is the database version
}
IMPORTANT: Incrementing the app version alone is not enough for onUpgrade to be called!
3. Don't forget your new users!
Don't forget to add
database.execSQL(DATABASE_CREATE_color);
to your onCreate() method as well or newly installed apps will lack the table.
4...