<cloud69>
I'm trying to pick a random string from an array but get: `NoMethodError: undefined method 'strip' for #<Array:0x000000afec634808>`: https://pastebin.com/Ds3xXX5Y anybody know?
<leftylink>
there's a big difference between .sample and .sample(1). try them out and see
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<havenwood>
cloud69: With the current level of human-like behavior they'll likely see through your ruse, for what it's worth. Is this really a purely academic exercise?
<havenwood>
This bot seems like a bot.
<cloud69>
Purely yeah!
<cloud69>
Hehe I figured it'd set off some alarm bells ;)
<havenwood>
cloud69: You've already required pry, so just jump in to a `binding.pry` on the line before the #sample and try it in the REPL.
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<cloud69>
Hey at least I'm not asking how to simulate clicks mouse movements right? :)
<havenwood>
cloud69: The REPL is a lovely way to quickly sanity check values and try hunches.
<cloud69>
havenwood: Great, I'm on it thanks!
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<cloud69>
ruby is so pretty i often find myself just staring at its beauty for hours and hours on end :D
<havenwood>
cloud69: Look at the arguments to your method and study which part the error says is wrong.
<havenwood>
cloud69: What class do you expect to be stripping?
<havenwood>
cloud69: And what class is it?
<cloud69>
i'm not sure i'm stripping anything, i just wanted to pass a random browser string to `html = open(startpage, "User-Agent" => random_browser)`
<havenwood>
cloud69: What class is `random_browser`?
<havenwood>
cloud69: Doesn't it seem wrong?
<havenwood>
cloud69: Look at what's expected versus what you're passing.
<havenwood>
cloud69: What is the expected class of the value corresponding to the "User-Agent" string?
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<havenwood>
cloud69: leftylink pointed to the cause of your problem. Did you try the difference in `pry`?
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<havenwood>
cloud69: From the command line, just type `pry` and try sampling with `1` as the argument versus no argument.
<cloud69>
that i tried but both returned the useragent string. but i see you just ran some stuff to show one is an array and the other an integer
<cloud69>
2 sec
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<cloud69>
there we go, thanks guys :D
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<leftylink>
hmm. you know why I don't like alias? its args are the opposite of ln -s
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<leftylink>
you know how to resolve this problem... just allow alias to accept its args in either order
<leftylink>
chaos
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<adam12>
lol
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<eoli3n>
Hi
<eoli3n>
in a vagrantfile, i want to increment a letter, something like this : http://ix.io/2E11
<eoli3n>
but vagrant shouldn't "see" ruby part, so i don't get why you say that it is a vagrant bug
<eoli3n>
if i set manually disks names it should work : lets try
<eoli3n>
(without the loop)
<eoli3n>
oh, you're right
<eoli3n>
so my ruby is ok ? good news
<adam12>
eoli3n: It's alomst fine. I'd personally assign LETTER to letter.
<adam12>
eoli3n: LETTER is a constant, and technically constants dont' change.
<eoli3n>
ah, right, fixed
<adam12>
eoli3n: And you could do `DISK_COUNT.times do`
<adam12>
eoli3n: Other than that, it's fine.
<eoli3n>
lets try the times part
<adam12>
eoli3n: Won't make a different since it's the same code.
<adam12>
"same" as functionality.
<adam12>
Just reads nicer / more intent revealing.
<eoli3n>
oh strange... LETTER to letter fixed my first problem
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<eoli3n>
oh that's strange, i don't get what happened
<eoli3n>
because the letter part is still commented
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<eoli3n>
adam12 times is not ok because it start to 0 and not 1
<leftylink>
whiel that may be true, notice that (0..DISK_COUNT).size == DISK_COUNT + 1, therefore the original code creates one more disk than DISK_COUNT should suggest it should
<leftylink>
&>> (0..DISK_COUNT).size
<eoli3n>
yes i saw it
<rubydoc>
stderr: -e:4:in `<main>': uninitialized constant DISK_COUNT (NameError)... check link for more (https://carc.in/#/r/9ydq)
<eoli3n>
never been there but #ruby is a fun place, i stay
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<adam12>
Heh
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<jidar>
can somebody explain what &:succ is doing in the above Enumerator/
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<adam12>
jidar: &:succ is calling Symbol#to_proc, which returns a Proc. The second argument to Enumerator.produce is a block to be called for each iteration, where in this case we pass a proc. Behind the scenes, it's yielding the return object from the previous loop (let's call it current_value). So basically each time #each is called, it calls the proc with current_value, then re-assigns it.
<adam12>
dnadev2: I didn't test it but it looks accurate.
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<adam12>
dnadev2: Might be more efficient to count this on the database tho, but you'd have to benchmark it.
<dnadev2>
adam12, interesting and definitely prettier than mine.. gonna test, thanks. yea, true about the performance :/
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<dnadev2>
adam12, love it
<dnadev2>
:)
<dnadev2>
thanks
<adam12>
dnadev2: np
* dnadev2
needs to learn how to think like that
<adam12>
dnadev2: It's just a few tricks, nothing super surprising.
<adam12>
dnadev2: Hash can return a default for missing keys, so we use that to initialize with `0`.
<dnadev2>
ahh
<adam12>
dnadev2: each_with_object is simpler (imho) to rationalize than reduce/inject because of the argument order. So iterate through each item, passing the item and the same Hash to each block.
<adam12>
it probably could of been reduce(Hash.new ...) { |memo, obj| }.
<adam12>
If you initialize someting immediately before a loop, then inside the loop, add to it, there's likely an Enumerable method for you. each_with_object, map, etc.
<adam12>
And of course, variable_N where N is a number, is generally a good use of a Hash.