19. In the Ruby debugger, which command executes the next line of code? a. conti

Question

19. In the Ruby debugger, which command executes the next line of code? a. continue b. cd c. next d. stacktrace 20. Which of the following statements would successfully test the palindrome? method from the fun_with_strings assignment inside irb? a. palindrome?("racecar") b. "racecar".palindrome? c. palindrome? "racecar" d. palindrome? 21. In Ruby, method_missing (if defined) would be passed the. a. b. c. d. Exception object Programmer-defined error message Method type Method name symbol and arguments

Explanation / Answer

The next executes the next line of code

19) c

It is "racecar".palindrome? Because we send the parameter for function in ruby by param.functionname?

20) b

method_missing(if defined) would passed by the name of the method then arguments then blocks.

21) d

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