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Difference between Static and final?
...he initialization of any instance variables.
A single copy to be shared by all instances of the class.
A static variable can be accessed directly by the class name and doesn’t need any object.
Syntax: Class.variable
Static method
It is a method which belongs to the class and not to the objec...
Pull all commits from a branch, push specified commits to another
...nd.
The problem with this commit is that git considers commits to include all history before them - thus, if you have three commits like so:
A-----B-----C
And try to get rid of B, you have to create an entirely new commit like so:
A-----------C'
Where C' has a different SHA-1 ID. Likewise, ch...
How do I run only specific tests in Rspec?
...onfiguration option treat_symbols_as_metadata_keys_with_true_values, which allows you to do:
describe "Awesome feature", :awesome do
where :awesome is treated as if it were :awesome => true.
Also see this answer for how to configure RSpec to automatically run 'focused' tests. This works especi...
Is optimisation level -O3 dangerous in g++?
...n undefined behavior, due to relying more strictly on the rules, and especially corner cases, of the language(s).
As a personal note, I am running production software in the financial sector for many years now with -O3 and have not yet encountered a bug that would not have been there if I would hav...
Rails ActiveRecord date between
...
I would personally created a scope to make it more readable and re-usable:
In you Comment.rb, you can define a scope:
scope :created_between, lambda {|start_date, end_date| where("created_at >= ? AND created_at <= ?", start_date, e...
Is there a list of screen resolutions for all Android based phones and tablets? [closed]
...p the extreme aspect ratios, that are rarely seen at phone size or larger, all the other devices fit a range from 1.3333 to 1.7778, which conveniently matches the current iPhone/iPad ratios (considering all devices in portrait mode). Note that there are quite a few variations within that range, so i...
Responsive image map
...ponsive image maps you will need to use a plugin:
https://github.com/stowball/jQuery-rwdImageMaps (No longer maintained)
Or
https://github.com/davidjbradshaw/imagemap-resizer
No major browsers understand percentage coordinates correctly, and all
interpret percentage coordinates as pixel c...
Git - What is the difference between push.default “matching” and “simple”
...
git push can push all branches or a single one dependent on this configuration:
Push all branches
git config --global push.default matching
It will push all the branches to the remote branch and would merge them.
If you don't want to push all...
stopPropagation vs. stopImmediatePropagation
...“parent”, but in reality both also stops entering children as well if called in the capture phase! See my answer for details.
– Robert Siemer
Mar 26 at 7:07
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rsync copy over only certain types of files using include option
...iles of certain extension(in this case *.sh), however it still copies over all the files. what's wrong?
6 Answers
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