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MySQL, better to insert NULL or empty string?
...of the question and only focuses on tangentially relevant facts (NULL sort order and length? These don't matter). On most text data input types there is not a difference between "no response" and "empty response", so I think this is a great question that deserves a better answer.
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How to use transactions with dapper.net?
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@CodeNaked, first, you've got the order wrong there. The catch block would be hit first if there's an exception, then the end of scope for using. Second, look at this answer and the referenced MSDN doc:stackoverflow.com/a/5306896/190476 calling dispose a seco...
Rails: Check output of path helper from console
...cts".* FROM "spree_products" WHERE "spree_products"."deleted_at" IS NULL ORDER BY "spree_products"."id" ASC LIMIT 1
=> "<a data-method=\"get\" href=\"/products/this-is-the-title\">test</a>"
share
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What's the fastest way to delete a large folder in Windows?
... to the recycle bin, but the explorer will still try to count all files in order to get an estimate, which takes ages for large folders (> 100k files)
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What's the difference between fill_parent and wrap_content?
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fill_parent (deprecated) = match_parent
The border of the child view expands to match the border of the parent view.
wrap_content
The border of the child view wraps snugly around its own content.
Here are some images to make things more clear. The green and red are Te...
Git merge two local branches
...v will not work on branchB further, I think it's better to keep commits in order to make reverts without headaches. So ;
git checkout branchA
git pull --rebase branchB
It's important that branchB shouldn't be used anymore.
For more ; https://www.derekgourlay.com/blog/git-when-to-merge-vs-when-to...
What is duck typing?
...that do not have strong typing.
The idea is that you don't need a type in order to invoke an existing method on an object - if a method is defined on it, you can invoke it.
The name comes from the phrase "If it looks like a duck and quacks like a duck, it's a duck".
Wikipedia has much more inform...
Sending websocket ping/pong frame from browser
...quite essential for the client application to regularly ping the server in order to ensure the connection has not been lost.
– Noel Abrahams
May 19 '16 at 10:08
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What are the dark corners of Vim your mom never told you about? [closed]
...ave that file and get a permission error, I just issue that vim command in order to save the file without the need to save it to a temp file and then copy it back again.
You obviously have to be on a system with sudo installed and have sudo rights.
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difference between variables inside and outside of __init__()
...company.com
>>> mycompany.com
You can also use class methods in order to change the class variable for all the instances of the class. For example:
@classmethod
def change_my_companys_name(cls, name):
cls.company = name
and now change_my_companys_name()
bob.change_my_companys_na...