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Which is better option to use for dividing an integer number by 2?
...f the following techniques is the best option for dividing an integer by 2 and why?
23 Answers
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MySQL connection not working: 2002 No such file or directory
I'm trying to set up WordPress. I have Apache and MySQL running, and the accounts and database are all set up. I tried to make a simple connection:
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What character encoding should I use for a HTTP header?
...e http://html5boilerplate.com/ for more info) for a Server HTTP-header and am wondering if it is "allowed" per spec.
2 ...
Get first and last date of current month with JavaScript or jQuery [duplicate]
As title says, I'm stuck on finding a way to get the first and last date of the current month with JavaScript or jQuery, and format it as:
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Why do we use __init__ in Python classes?
I am having trouble understanding the Initialization of classes.
8 Answers
8
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git diff file against its last change
...ble to get git to produce a diff between a specific file as it exists now, and as it existed before the last commit that changed it?
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Rails create or update magic?
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Rails 6
Rails 6 added an upsert and upsert_all methods that deliver this functionality.
Model.upsert(column_name: value)
[upsert] It does not instantiate any models nor does it trigger Active Record callbacks or validations.
Rails 5, 4, and 3
Not ...
What's wrong with using $_REQUEST[]?
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There's absolutely nothing wrong with taking input from both $_GET and $_POST in a combined way. In fact that's what you almost always want to do:
for a plain idempotent request usually submitted via GET, there's the possibility the amount of data you want won't fit in a URL so it has be m...
Base64 length calculation?
... * 6 = 24 bits = 3 bytes.
So you need 4*(n/3) chars to represent n bytes, and this needs to be rounded up to a multiple of 4.
The number of unused padding chars resulting from the rounding up to a multiple of 4 will obviously be 0, 1, 2 or 3.
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How can I split a JavaScript string by white space or comma?
...'s both more strict than what I suggest (only one comma allowed, in front) and more loose (split on all whitespace) than what the OP asked for. IMHO it would be simply worse -- consider the input spaces , before commas.
– Jon
Apr 27 '12 at 7:52
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