Julien Portalier questions

Julien Portalier answers

• Crystal convert the idea behind Thread pool to Fibers/spawn
• Crystal C bindings: return type char*
• How to execute a shell script in Crystal while capturing output?
• Using transaction in Ruby On Rails controller method
• How to write log inside my rubygem that will be used in a rails app?
• PostgreSQL ltree- vs tree module vs integer/string arrays or string delimited path
• Is there an equivalent to Pry for Crystal?
• JavaScript checking for null vs. undefined and difference between == and ===
• Angular and Rails shallow resources
• How to write binary into file in Crystal