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In my latest task, I found some code like this:
if false
print "a"
elsif true
print "b"
else
print "c"
end
Is if else statement correct? Will if ever be executed?
This code will always print "b".
One explanation is that this code was put in as a placeholder for some real logic which was supposed to be added at a later point in time.
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Closed 8 years ago.
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If given an array l = Array.new with l being filled with text of an essay.
What would be the easiest method to create a new string, loop through each line of the array and then add each line of the array to the newly created string?
my_string = l.join '' should do the job fine.
A more imperative solution is the following:
my_string = ''
l.each do |line|
my_string += line
end
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Here is ruby code:
[:val1, :val2, :val3].each do |method_name|
define_method(met_n) do |param1, param2|
inflect(param1, param2, SOME_CONST[met_n.to_s])
end
end
It's not mine code. I tried to figure out what inflect is, but I failed, although it should be a standard ruby function.
So how is it defined or where do I find a documentation about it?
inflect isn't a standard ruby function. This must be part of someone else's API.
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How can I load an OWL file in Gruff? It's not clear in the tutorials. I have a file, camera.owl. I need to display this in Gruff and view a graph of it.
I found the answer to this question myself. You need to look under the file menu. File > Load Triples > RDF/XML > File .... Thank you.
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I'm working with Prawn gem and creating a table. I want to remove all its borders. I can't find this facility in the documentation.
How do I do that?
Here is the documentation for the prawn gem tables.
According to the "Constructor Details" section, you can pass a variety of :border_<x> options to the constructor... I'd suggest trying to pass a value of :border_width => 0 to your table constructor. (note: not tested - try it yourself and see what happens)
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How do I rewrite this Java statement in Ruby?
for (Map.Entry<byte[], HServerLoad.RegionLoad> entry : serverLoad.getRegionsLoad().entrySet()){
}
Thanks for your help!
If you want to iterate a ruby map(hash) with key and values you could write
h.each { |k, v| puts "Key=#{k}, Value=#{v}" }