TILs - Fueling Curiosity, One Insight at a Time

about StringIO http://ruby-doc.org/stdlib-1.9.3/libdoc/stringio/rdoc/StringIO.html so useful in certain cases

looping through a collection of records in database using methods like all is very inefficient (it tries to instantiate all objects at once) and should resort to batch processing methods eg: find_each.

ansible lets u use ansible_distribution ( values : Ubuntu, CentOS etc), ansible_distribution_release (values : xenial, precise etc) to write dist specific commands

There is a global location for git ignore *nix - ~/.config/git/ignore

open chrome devtools, press cmd(ctrl) + shift + p and type show coverage and press enter, once you reload the page you can see the amount of JS fetched and how much is actually getting used on that page

ruby has a permutation method for Array. https://apidock.com/ruby/Array/permutation

Array.from() takes a second argument which is a map. Example: Array.from(Array(10), (element, index) => //some logic to fill the array)

this seems a pretty cool library http://shrinerb.com/

Rails console does lazy connection to database and this behaviour can be changed with by adding ActiveRecord::Base.connection to console config block.

"localization" referred as "l10n", and "internationalization" referred as "i18n". cause,
l10n => "l" in between 10chars(o, c, a, l, i, z, a, t, i, o) and then "n"
i18n => "i" in between 18chars and then "n"
Also Globalization (g11n), Localizability (l12y).
I didnt knew, never noticed, and I feel stupid now :P