TILs - Fueling Curiosity, One Insight at a Time

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)

To remove unwanted hex packages from mix.lock file, use mix deps.unlock --unused command

about https://stedolan.github.io/jq/ useful while tailing json logs, e.g tail -f /var/log/app.log | jq -r

You can switch between k8s contexts using the docker toolbar menu in OSX.

use Application.get_env(:your_app,:env) in prod instead of Mix.env. when you deploying to prod. https://gitlab.com/codemancers/diffity-vue/commit/076c54a418d988208627f61f206176744aefca30

React provides us with Portals which can be used to render children into a DOM node that exists outside the DOM hierarchy of the parent component

React provides us with Portals which can be used to render children into a DOM node that exists outside the DOM hierarchy of the parent component

dev/tty https://linux.die.net/man/4/tty

GCE has quotas on your account. You can see them here https://console.cloud.google.com/iam-admin/quotas and you need to mail them if you wish to increase any of your resources under your project. So, you can't just scale up to whatever scale you would like to!

rails 5 has config.action_view.automatically_disable_submit_tag set to true by default