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Differences between cookies and sessions?
...its session to the server with each request. The server, through whatever means, uses this id to retrieve any data for that session making it available for the lifetime of the request.
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Convert pandas dataframe to NumPy array
...rec.fromrecords(v, names=v.columns.tolist())
11.1 ms ± 557 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
9.67 ms ± 126 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
Rationale for Adding a New Method
to_numpy() (in addition to array) was added as a result of discussion...
Server is already running in Rails
...is locked in a file and web server thinks that if that file exists then it means it is already running. Normally when a web server is closed that file is deleted, but in some cases, proper deletion doesn't happen so you have to remove the file manually
New Solutions
when you run rails s
=> Boo...
Put buttons at bottom of screen with LinearLayout?
...Layout: android:gravity="center|bottom"
Notice that fill_parent does not mean "take up all available space". However, if you use layout_height="0dp" with layout_weight="1", then a view will take up all available space (Can't get proper layout with "fill_parent").
Here is some code I quickly wrote...
How to create a dialog with “yes” and “no” options?
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Avoid inline JavaScript - changing the behaviour would mean editing every instance of the code, and it ain't pretty!
A much cleaner way is to use a data attribute on the element, such as data-confirm="Your message here". My code below supports the following actions, including dy...
What does the > (greater than bracket) mean beside file names in Eclipse's Package Explorer?
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It means the file has been modified as compared to the version in your source control repository.
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What does |= (single pipe equal) and &=(single ampersand equal) mean
...&= ~FileAttributes.System. To understand why:
~FileAttributes.System means "all attributes except System" (~ is a bitwise-NOT)
& means "the result is all the attributes which occur on both sides of the operand"
So it's basically acting as a mask - only retain those attributes which appea...
What is the difference between a stored procedure and a view?
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What does mean by "can NOT be used as the target of an INSERT, UPDATE or DELETE statement"? Can't we use INSERT,DELETE,UPDATE in Stored Procedure ?
– Arsman Ahmad
Nov 17 '18 at 12:54
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How do you dynamically add elements to a ListView on Android?
...hanged() ? Oh, I see. Thanks @venkat530. But what about the list itself? I mean if let say firstly he created an arraylist that used as a data container for the adapter. And now you just add an item directly to the adapter instead to the arraylist. Would the arraylist data is updated / untouched?
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MVC 5 Seed Users and Roles
... question in the comments, and I was stuck on it myself for a while)
This means that the manager.Create(user, "ChangeItAsap!") was not successful.
This might have a different reason, but for me it was because my password was not succeeding its validation.
I had a custom passwordvalidator, which wa...