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
Author
user-image
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
Author
user-image
Emil
In Tmux, prefix+t shows the current time in big font size
Published
Author
user-image
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
Author
user-image
Ganesh
ansible lets u use ansible_distribution ( values : Ubuntu, CentOS etc), ansible_distribution_release (values : xenial, precise etc) to write dist specific commands
Published
Author
user-image
Manu
There is a global location for git ignore *nix - ~/.config/git/ignore
Published
Author
user-image
Harshwardhan
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
Published
Author
user-image
Harshwardhan
Array.from() takes a second argument which is a map. Example: Array.from(Array(10), (element, index) => //some logic to fill the array)

Showing page 73 of 83

Ready to Build Something Amazing?

Codemancers can bring your vision to life and help you achieve your goals

Let's Talk