try-catch

try catch blocks for Ruby!

Try catch Block Chain use case

if you new to ruby and missing the try catch block here is a simple one for you

    require 'try-catch'

    __try__ { hello world }.catch{ "not hello world " }
    #> "not hello world"

    __try__ { "hello world".asdaf }.catch( NoMethodError ) { |ex| "there is and error, because #{ex}" }
    #> there is and error, because undefined method `asdaf' for "hello world":String

    #> you can cain up multiple catch for specific error
    __try__ { "hello world".asdaf }.catch( NoMethodError ) { |ex| "there is and error, because #{ex}" }

    puts __try__ { "hello world".asdaf }.catch(ArgumentError) { "it was and argument error" }.catch( NoMethodError ) { |ex| "bla bla #{ex}" }
    #> "bla bla undefined method `asdaf' for "hello world":String"

    puts __try_nc__ { "hello world".asd }  #> non cached try block

    puts __try_n__ { "hello".asd } || __try_n__{ "hello".downcase } #> "hello"

The each line style

    __try__ { puts "hello world".asdf }
    __catch__ { |ex| puts ex.to_s.upcase  }
    #> UNDEFINED METHOD `ASDF' FOR "HELLO WORLD":STRING

or in each line version with specific Exception case

    __try__ { puts "hello world".asdf }
    __catch__(ArgumentError) { |ex| puts ex.to_s.capitalize  }
    __catch__(NoMethodError) { |ex| puts ex.to_s.upcase  }

Happy Coding!