CODEWITHSUNDEEP
rubyirb
Mukul Goel
Mukul Goel

Reputation: 8467

ruby puts command

I have just started to learn "Ruby" (like 2 mins before) , searched on google for tutorial

I was trying the puts command, where I accidently wrote 

irb(main):005:0> puts "nil:
irb(main):006:0" puts :
irb(main):007:0" puts "nil:
irb(main):008:0* puts "nil:
irb(main):009:0" puts "nil:
irb(main):010:0*

I noticed the change in prompt > to " and then * , I really dont know what it is, could somebody explain what just happened ?

Thank you :)

By the way, if its important, I have downloaded this ruby installer

Upvotes: 1

Views: 1510

Answers (4)

Shaun Sweet
Shaun Sweet

Reputation: 689

Hold control and tap C. That will clear you out. It's waiting for more input. You need to use the command as

puts "nil:"
puts "string here"
puts variable_here

Upvotes: 0

user904990
user904990

Reputation:

i wonder why wont you close your string?

should be:

puts "nil:"

changing from > to " means it is waiting for more input

changing from " to * means a beginning of a statement - in line 3 you closed you string and used nil

Upvotes: 3

Pablo Fernandez heelhook
Pablo Fernandez heelhook

Reputation: 12503

IRB is waiting for you to finish the string, like @peterpan said, IRB is able to handle multiple lines.

The * you are seeing is because when you write the last puts "nil: you are effectively closing the first string, and IRB is seeing now the beginning of a hash nil:, so its expecting a value of the key nil.

Upvotes: 2

Trent Earl
Trent Earl

Reputation: 3607

IRB is expecting the end of a string. You haven't closed your string on the first, so the prompt shows this with the ". Strings can span multiple lines in the irb prompt.

Upvotes: 1

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