TILs - Fueling Curiosity, One Insight at a Time

At Codemancers, we believe every day is an opportunity to grow. This section is where our team shares bite-sized discoveries, technical breakthroughs and fascinating nuggets of wisdom we've stumbled upon in our work.

Published: Feb 13, 2018
Author: Harshwardhan

always use default props while writing react component, reduces the number of unexpected bugs which are hard to reproduce.

Published: Feb 13, 2018
Author: Manu

a tags without an href are not links, they are placeholders for links. Also, capybara only click on links which have the href attribute.

Published: Feb 2, 2018
Author: Manu

Difference between usage of size/count/length when dealing with ActiveRecord::Relations and got rid of many COUNT(*) queries. Good article on the same - http://work.stevegrossi.com/2015/04/25/how-to-count-with-activerecord/

Published: Jan 29, 2018
Author: Manu

Postgres VACUUM [https://www.postgresql.org/docs/9.1/static/sql-vacuum.html] - It reclaims storage occupied by dead tuples.

Published: Jan 25, 2018
Author: Manu

Rspec's subject is a special variable that refers to the object being tested. It's instantiated implicitly but can also be done explicitly. Handy to be used with shoulda matchers.

Published: Jan 24, 2018
Author: Emil

In Tmux, prefix+t shows the current time in big font size

Published: Jan 24, 2018
Author: Mrinmoy

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

Published: Jan 23, 2018
Author: Manu

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.

Published: Jan 22, 2018
Author: Ganesh

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

Published: Jan 16, 2018
Author: Manu

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

Showing 72 to 74 of 82 results

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