Pry-byebug

Pry-byebug is a mix beetween 2 tools :

• A debugger for Ruby 2.
• An alternative to IRB.

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Better-errors & Binding_of_caller

This two gems let you :

• Replace the standard Rails Error Pages.
• Get variable inspection.

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Bullet

Kill N+1 queries and unused eager loading.

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Rack-mini-profiler

Displays speed badge for every html page.

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Rubocop

Static ruby code analyzer.

For people who can't use CodeClimate

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