How to get image details like creation timestamp using MiniMagic

How to get image details like creation date and tile using MiniMagic

How to drop a production database in Rails 5

I encountered a problem when dropping a production database. Here's the solution

How to show macOS notification from Bash?

Sometimes some task takes a long time and you want to know when it finishes. The system can show you desktop notification with predefined (or added as variable) message.

Style PDFs using metric units in CSS with wicked pdf

Configure wicked_pdf with: ```ruby disable_smart_shrinking: true ``` Then you can accurately use `mm` and `cm` as units in your CSS

Line icons based on Font Awesome

Replace Font Awesome with modern line icons with a single line of code.

https://icons8.com/line-awesome

NazwaPL SSL certificate chain

Here you can find SSL certificates needed to create SSL chain if you use certificate from NazwaPL.

Multiline method memoization in ruby

Method memoization in ruby is easy when the method is one line long: ``` def something @something ||= # your calculations end ``` But when we hav...

Global payment/billing provider compatible with EU laws

Recommended by https://pawelurbanek.com/profitable-slack-bot-rails

https://paddle.com/

Hello World in Slack

See the link for setup instructions. Then in ruby: ```ruby conn = Faraday.new(your_slack_webhook_url) conn.post do |req| req.headers['Content-Type'] ...

https://api.slack.com/tutorials/slack-apps-hello-world

Launching subprocessess in Ruby

This graph shows several ways to launch subprocess in Ruby.

Free icon rainbow - big source of free icons

Free icon rainbow - big source of free icons. Many sizes and 3 formats: png, jpg, svg

http://free-icon-rainbow.com/

Make RSpec shared examples easier to understand with this one trick!

This guy makes his shared examples easier to understand. Overpaid consultants hate him!

When to use let, let! and before in RSpec

When to use let, let! and before in RSpec.

Using comment notes in Rails

In your code: ```ruby # TODO: fix this ``` In your shell: ```bash % rake notes ``` ```text config/routes.rb: * [ 1] [TODO] fix this ```

Debugging Turbolinks 5

```javascript document.addEventListener('turbolinks:click', () => console.log('turbolinks:click')) document.addEventListener('turbolinks:before-visit', () ...

Autocomplete SSH hosts in Bash

``` # ~/.bash_profile _complete_ssh_hosts () { COMPREPLY=() cur="${COMP_WORDS[COMP_CWORD]}" comp_ssh_hosts=`cat ~/.ssh/known_ho...

Local HTTP server using ruby

``` ruby -run -ehttpd . -p8000 ```

Flush dns in macOS

``` sudo killall -HUP mDNSResponder ```