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.

Nov 12, 2018
Ram talks with the computer with the help of a memory controller on the CPU. So the reason why its often suggested to prefer to have multiple RAM modules rather than a single one is due to memory channels. If the memory controller within the CPU supports multi-channel architecture then it can leverage it having multiple RAMs than having a single one as it helps in faster data exchange. Like if it’s dual channel then a pair, quad channel then four modules, etc.
akshay
akshay
Nov 5, 2018
to verify certs generated by letsencrypt, we can do openssl x509 -in server.crt -text -noout. More info here: https://support.asperasoft.com/hc/en-us/articles/216128468-OpenSSL-commands-to-check-and-verify-your-SSL-certificate-key-and-CSR
iffyuva
iffyuva
Nov 5, 2018
to verify certs generated by letsencrypt, we can do openssl x509 -in server.crt -text -noout. More info here: https://support.asperasoft.com/hc/en-us/articles/216128468-OpenSSL-commands-to-check-and-verify-your-SSL-certificate-key-and-CSR
iffyuva
iffyuva
Nov 2, 2018
Rspec has argument matchers any_args for matching any number of args at any point in an arg list and anything for matching anything and everything.
akshay
akshay
Oct 31, 2018
use flex: 1 on the child of flexbox element to expand the child to 100% width of the parent https://jsbin.com/dadidujubo/1
revath
revath
Oct 26, 2018
Capybara defaults to requiring an href attribute exist when finding links. To handle such cases we can pass href: nil as an option thus enabling to find it.
akshay
akshay
Oct 12, 2018
Rails has an ActiveSupport::Notifications module which is a part of its core instrumentation API. This API allows users to define hooks on events. With the ActiveSupport::Notifications you can instrument an event by simply calling instrument with a name, payload and a block. The notification will be sent after the block returns. Now all you need is to define subscribe method which consumes the event based on event name and you can define your on callback code here, sort of like a Pub/sub pattern.
akshay
akshay
Oct 10, 2018
related to GIT_SSH_COMMAND (http://codemancers.littil.io/?q=GIT_SSH_COMMAND) if you are using hub + multiple account. you can use HUB_CONFIG=~/.config/hub-work for setting config for work account. source: https://github.com/github/hub/issues/1300#issuecomment-318872894
revath
revath
Oct 4, 2018
you can pass options.args << ‘--headless’ to firefox newer versions, no need for headless gem

options = Selenium::WebDriver::Firefox::Options.new
options.args << ‘--headless’
Capybara::Selenium::Driver.new(app,browser: :firefox, options: options)
goromlagche
goromlagche

Showing 58 to 60 of 78 results

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