Anand

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Anand has asked 20 questions and find answers to 3 problems.

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Anand questions

How to enable top and bottom margins between a series of spans inside a div?
Rails: Allow only one record of a rails model to have a boolean property true?
How to execute a python script within a virtual environment using the python binary path?
Unique index when one of two columns is null
Return array of replacements from ruby
What is the difference between class Foo; end & Foo = Class.new (And module/Module)?
Capture snapshot of current python environment and recreate on another machine
Python dictionary values check not empty and not None
Group by a column and sort by another column in R
ruby regex scan versus =~

Anand answers

Rstudio - How to show plot output in bottom right pane?
Rails 4 saving fields in a similar manner to wordpress options table
I want a user to be able to follow a topic(tag) that is created with acts_as_taggable_on in Rails 4