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What is a rune?
... bytes, while each rune takes 4 bytes
For string, both len() and index are based on bytes.
For []rune, both len() and index are based on rune (or int32).
Relationships - string & []rune:
When you convert from string to []rune, each utf-8 char in that string becomes a rune.
Similarly, in the ...
Mockito How to mock only the call of a method of the superclass
...m not seeing the LSP violation. I have roughly the same setup as the OP: a base DAO class with a findAll() method, and a subclass DAO that overrides the base method by calling super.findAll() and then sorting the result. The subclass is substitutable into all contexts accepting the superclass. Am I ...
'^M' character at end of lines
...
The cause is the difference between how a Windows-based based OS and a Unix based OS store the end-of-line markers.
Windows based operating systems, thanks to their DOS heritage, store an end-of-line as a pair of characters - 0x0D0A (carriage return + line feed). Unix-based...
'IF' in 'SELECT' statement - choose output value based on column values
... I prefer ANSI standard syntax over custom syntax for a particular database.
– Gordon Linoff
May 3 '14 at 18:45
2
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Change text color based on brightness of the covered background area?
...nd setting them equal to each other. However, this solution is getting its base color from a string, and not from the CSS property of the element. To be reliable, the solution would have to dynamically obtain background colors, which usually returns rgb() or rgba() values, but could differ according...
Merge pull request to a different branch than default, in Github
...le, then select the branch from the dropdown.
You can now change the base branch of an open pull request. After you’ve created a pull request, you can modify the base branch so that the changes in the pull request are compared against a different branch. By changing the base branch of your o...
Rails CSRF Protection + Angular.js: protect_from_forgery makes me to log out on POST
...rify that the cookie matches
X-XSRF-TOKEN HTTP header
Here is my solution based on those instructions:
First, set the cookie:
# app/controllers/application_controller.rb
# Turn on request forgery protection
protect_from_forgery
after_action :set_csrf_cookie
def set_csrf_cookie
cookies['XSRF-TO...
Why is a 3-way merge advantageous over a 2-way merge?
... The essential logic of a three-way merge tool is simple:
Compare base, source, and target files
Identify the "chunks" in the source and target files file:
Chunks that don't match the base
Chunks that do match the base
Then, put together a merged result consisting of:
...
How to sort a file, based on its numerical values for a field?
Example file.txt :
8 Answers
8
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Is there a unique Android device ID?
...l only work "some" of the time, and unfortunately, that's not good enough.
Based on my tests of devices (all phones, at least one of which is not activated):
All devices tested returned a value for TelephonyManager.getDeviceId()
All GSM devices (all tested with a SIM) returned a value for Telephony...