Prettier raw SQL in ruby
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Use this syntax to format raw SQL nicely in ruby code. In some editors it also enables SQL syntax highlighting.

Run RSpec without feature specs
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`rspec spec --tag ~@type:feature`

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

RSpec rerun failures
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How to configure RSpec to rerun failed specs only

Close a frozen ssh session
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Properly close a frozen ssh session

How to deal with RSpec time precision error
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In some cases, Ruby uses higher precision to represent time than the DB. When we compare a timestamp before and after saving to the DB it might not be equal.

Move last commit to a feature branch
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When you accidentally commit to master/staging and need to move the commit to a feature branch

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

Set the same password for all users in one query
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Reset devise passwords quickly, even for thousands of users.

How to simplify nested ifs
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If you have `if`s nested in this way: ``` if a if b 1 else 2 end else 3 end ``` You can flatten and simplify them into this: ...

Debugging Turbolinks 5
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```javascript document.addEventListener('turbolinks:click', () => console.log('turbolinks:click')) document.addEventListener('turbolinks:before-visit', () ...

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

Make RSpec shared examples easier to understand with this one trick!
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This guy makes his shared examples easier to understand. Overpaid consultants hate him!

Global payment/billing provider compatible with EU laws
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Recommended by https://pawelurbanek.com/profitable-slack-bot-rails

https://paddle.com/

Generate fake screenshot mockups in minutes
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This app allows you to upload screenshots and paste them into a fake phone/laptop mockup.

https://mockuphone.com/

Define routes for external links in rails
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You can define external urls in routes.rb instead of creating helpers manually

https://guides.rubyonrails.org/routing.html#direct-routes

Pundit Decorator
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Organize Pundit error messages and redirects in a decorator. Simplify reuse and maintenance

Use React.Fragment to avoid creating useless divs
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This jsx ```react <React.Fragment> <h1>Hello World</h1> <p>This is paragraph</p> </React.Fragment> ``` Will be compiled into this html ```h...

TCP Server in Elixir
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How to setup a simple, but robust TCP server in Elixir

Hello World in Slack
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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

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

https://icons8.com/line-awesome