TILs - Fueling Curiosity, One Insight at a Time

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

If you have trouble booting after a routine update, just select your main hard drive as the startup disk and it will boot normally. More info here: https://jeroenmols.com/blog/2017/12/26/macosupdate/

accessing a deep nested object in javascript made easy https://github.com/facebookincubator/idx

Rails ActionController provides :stale? and :fresh_when methods which can be use to set HTTP_IF_NONE_MATCH and HTTP_IF_MODIFIED_SINCE headers on the browser. This helps the client to check whether the page has been modified. Response freshness is checked by matching Last-Modified and ETag from the server against the client request's HTTP_IF_MODIFIED_SINCE and HTTP_IF_NONE_MATCHheaders. If it matches, then the server responds with 304 (“not modified”) status code. This will make the client to make use of cached copy of the page - thus saving us from the time spent in generating the response.

rspec has a --bisect flag that helps to chase down order-dependent test failures. It will figure out the minimum number of tests when run in order will produce the test failure.

when rendering rails partial with collection, rails provides a counter variable which can be accessed by title of the partial followed _counter. For eg: if the partial is called apple, then counter variable is called apple_counter.
Reference: https://guides.rubyonrails.org/layouts_and_rendering.html#local-variables

Docker images for rails will be around 500Mb on Alpine linux. Sounds a lot. Whereas Alpine bases phoenix/elixir images are typically under 100Mb

as of webpack 4.x you can pass function for output.filename which will get the input chunk as it's param and return a string

"Don't add ! to your destructive (receiver-changing) methods' names,
unless you consider the changing to be "dangerous" and you have a
"non-dangerous" equivalent method without the !" http://davidablack.net/dablog.html#2007/8/15/bang-methods-or-danger-will-rubyist

Use DISABLE_DATABASE_ENVIRONMENT_CHECK env variable to get rid of those crazy migrations check introduced by Rails 5!

we can attach methods to an individual instance in ruby https://www.dropbox.com/s/4gpm3r9r9qun35f/Screen%20Shot%202018-08-02%20at%2011.10.22%20PM.png?dl=0
prototypes :p

~/.local/share/trash

form.submit() won't run the HTML5 validations. if you want to programatically run HTML5 validation use form.checkValidity() and form.reportValidity() EG: https://jsbin.com/huqana

The EXPLAIN statement provides information about how MySQL executes statements i.e MySQL explains how it would process the statement, including information about how tables are joined and in which order

For radio buttons, checkboxes ..., Materialize expects the input tag to appear before the label tag. Otherwise only the label will be rendered.