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Removing all empty elements from a hash / YAML?
How would I go about removing all empty elements (empty list items) from a nested Hash or YAML file?
20 Answers
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Separating class code into a header and cpp file
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So this means that all files that include your header file will "see" the private members. If for example you want to publish a lib and its header, you have to show the private members of the class?
– Gauthier
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Rails ActiveRecord date between
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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...
Why do we need entity objects? [closed]
I really need to see some honest, thoughtful debate on the merits of the currently accepted enterprise application design paradigm.
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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...
List goals/targets in GNU make that contain variables in their definition
...utput from make -pn (i.e. make --print-data-base --dry-run)? It prints out all the variables, rules, implicit rules and which commands will be run in laborious detail.
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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https://github.com/stowball/jQuery-rwdImageMaps (No longer maintained)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...
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...
How to get all groups that a user is a member of?
... returns members of a specific group. Is there a cmdlet or property to get all the groups that a particular user is a member of?
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