The boolean 'False' | Sololearn: Learn to code for FREE!

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The boolean 'False'

I was doing ruby challenge and I failed a question which asked what the value of false was!After the challenge i discovered false evaluates to truth soo... Why does the boolean 'false' evaluate to truth in ruby?

11/27/2017 2:47:44 PM

᠌᠌Brains[Abidemi]

19 Answers

New Answer

+19

@Brains it must have been : As a string "false" is : correct ans is : truthy.

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@🌞 Brains In Ruby only false & nil are falsey , everything else is truthy ..😊😊😊 the que u r referring in that false is taken as string "false". so its truthy😎😎😎 I hope u start challenging me in Ruby😎 bro...!! I will solve all ur doubts 🤣🤣🤣🤣🤣

+6

if "false" is taken as string it's truthy if false is taken as boolean it's false.

+5

Jimmy I know it's you Victor sooo....

+4

You are the dumbest friend I have😂😂you open an account and immediately the first thing you do is comment on my post?and you think I wouldn't suspect?FAIL

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ok

+4

that helped a lot

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thanks

+3

I've cleared my challenge history

+3

ohhh...

+3

in one of the questions that I did, it said the opposite. Maybe the question was wrong

+3

No. Question was not wrong.

+3

@sid see this https://www.sololearn.com/discuss/875001/?ref=app

+2

Well, there are two objects in Ruby that evaluates to false. 1) nil 2) false (as a boolean value) I suppose that in challenge there is about "false" string, which evaluates to true. This is tricky question, but still valid, and even cool imo :)

+2

Apart from true and false, if you try to evaluate something that is not a boolean, ruby will treat them as truthy and falsey. Only false and nil are falsey, everything else is truthy. The boolean false is obviously false, but if it is a string “false”, then ruby treats it as truthy.

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@Deoanshu Thakur Sorry if you don’t like me always challenging you 😅I don’t know why but I like to challenge someone who is better than me. If you think I am spamming and disturbing you, please let me know. I will stop challenging you then 😀

+1

@sid you are wrong "true" = truthy "false" = truthy

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"false" = truthy "true" = falsey