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Odd behavior when Java converts int to byte?
...resent it as an int (32 bits) you simply copy the 1 to the left 24 times.
Now, one way to read a negative two's complement number is to start with the least significant bit, move left until you find the first 1, then invert every bit afterwards. The resulting number is the positive version of that ...
How does Facebook Sharer select Images and other metadata when sharing my URL?
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Minimum image size is now 200x200px.
– Tr1stan
Jun 20 '13 at 16:49
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How do I use vim registers?
I only know of one instance using registers is via Ctrl R * whereby I paste text from a clipboard.
16 Answers
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ActiveRecord OR query
...s noted in this pull request https://github.com/rails/rails/pull/9052
For now, simply sticking with the following works great:
Foo.where('foo= ? OR bar= ?', 'bar', 'bar')
Update: According to https://github.com/rails/rails/pull/16052 the or feature will be available in Rails 5
Update: Feature h...
iOS 7's blurred overlay effect using CSS?
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I edited my jsfiddle, now it does the trick like IOS7 ;) => CSS3 IOS7 effect
– Cana
Jun 12 '13 at 8:55
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Select Pandas rows based on list index
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This is now deprecated, .iloc should be used for positional indexing
– t_warsop
May 9 '19 at 12:56
add a com...
How to check if a String contains only ASCII?
...eString) method which relies on the factory method ascii() rather than the now deprecated ASCII singleton.
Here ASCII includes all ASCII characters including the non-printable characters lower than 0x20 (space) such as tabs, line-feed / return but also BEL with code 0x07 and DEL with code 0x7F.
Th...
use localStorage across subdomains
...afari 7+ both on desktop and mobile to block 3rd party data. The option is now called "Block cookies and other website data" which refers to things like localstorage which are now completely isolated by domain. This method wont work in Safari
– Aranganathan
Jul...
How to output in CLI during execution of PHP Unit tests?
...t (or conf file has beStrictAboutOutputDuringTests="true") - documentation now says "A test that emits output, for instance by invoking print in either the test code or the tested code, will be marked as risky when this check is enabled." phpunit.readthedocs.io/en/8.4/risky-tests.html#risky-tests
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CKEditor instance already exists
...laying but the other two where, I added the above code and all teh editors now appear
– Craig Angus
Apr 29 '10 at 15:56
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