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How to store a list in a column of a database table
...ise you to avoid this idea and stick with the practices recommended to you by more seasoned SQL developers.
The principle you're violating is called first normal form, which is the first step in database normalization.
At the risk of oversimplifying things, database normalization is the process of...
How do you rotate a two dimensional array?
Inspired by Raymond Chen's post , say you have a 4x4 two dimensional array, write a function that rotates it 90 degrees. Raymond links to a solution in pseudo code, but I'd like to see some real world stuff.
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Accessing last x characters of a string in Bash
...o up to length characters of parameter starting at the character
specified by offset. If length is omitted, expands to the substring of parameter
starting at the character specified by offset. length and offset are arithmetic
expressions (see Shell Arithmetic). This is referred to as Substring Expan...
What do querySelectorAll and getElementsBy* methods return?
Do getElementsByClassName (and similar functions like getElementsByTagName and querySelectorAll ) work the same as getElementById or do they return an array of elements?
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git stash blunder: git stash pop and ended up with merge conflicts
...to the HEAD commit to reverse 2. and to clean up working tree changes made by 2. and 3.; git-reset --hard can be used for this.
Resolve the conflicts. Git will mark the conflicts in the working tree. Edit the files into shape and git add them to the index. Use git commit to seal the deal.
And un...
Transfer-Encoding: gzip vs. Content-Encoding: gzip
...the realms of the spec and might run into issues such as the one mentioned by Fielding as well as others, e.g. when caching proxies are involved.
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What is the use of “assert” in Python?
...s has been pointed out above, in Python 3, assert is still a statement, so by analogy with print(..), one may extrapolate the same to assert(..) or raise(..) but you shouldn't.
This is important because:
assert(2 + 2 == 5, "Houston we've got a problem")
won't work, unlike
assert 2 + 2 == 5, "Ho...
What is CDATA in HTML? [duplicate]
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All text in an XML document will be parsed by the parser.
But text inside a CDATA section will be ignored by the parser.
CDATA - (Unparsed) Character Data
The term CDATA is used about text data that should not be parsed by the XML parser.
Characters like "<" and "...
How using try catch for exception handling is best practice
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My exception handling strategy is :
To catch all unhandled exceptions by hooking to the Application.ThreadException event, then decide :
For a UI application: to pop it to the user with an apology message (winforms)
For a Service or a Console application: log it to a file (service or console)...
Why Does OAuth v2 Have Both Access and Refresh Tokens?
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Refresh token can be used by a third party that can renew the access token without any knowledge of user credentials.
– Marek Dec
Dec 22 '15 at 15:58
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