It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
I am trying to read values from a .txt file and keep getting the above error. My code reads:
file <- readFile "films.txt"
let database = (read file :: [Film])
and Film is a data type I declared as:
type Film = (String, String, Int)
Still quite new to Haskell so have no idea how to parse a string back into the required type. Sort of assumed it would be nice and do it for me like it does with writeFile!
Any hints?
Related
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 9 years ago.
For instance 1 is made of 2 dashes, 8 is made of 7 dashes and so on.write a function that takes this string message as an input and returns a corresponding value in terms of a number. This number is the count of dashes in the string message.
String has a count method:
"abc--de-f-".count('-') #=> 4
Just get a string with nothing but the dashes from your input string, and then check the length of that string:
dash_string = input_string.gsub(/[^-]/, '')
number = dash_string.length
You might want to subtract 1 from that answer based on your examples, bearing in mind that a string with no dashes would turn into -1 in that case.
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 9 years ago.
I want to know what will be the result of the following code
NSString *str = #"0";
NSString *str1 = #"12";
NSLog(#"str int value %d, %d",str, str1);
Result I got is 18036, 18052
I used a wrong format specifier in my code and came across this weird result. I fixed it later through. But I wanted to know what exactly it print out.
Thanks
NSLog(#"str int value %d, %d",str, str1);
You're passing pointers to strings as the parameters, but the format string specifies integers. A good guess is that the pointers will be interpreted as integers, so the output will depend on where in memory the strings happen to be allocated.
I guess it printed out the string pointer address
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
Randomly output text from array to view - RAILS
It is not really well formated question ... You should be more precise about what you want, what you are using, etc.
Assuming you are using Rails 3, ERB for HTML generation:
# in your controller:
file_as_array = IO.readlines('filename.txt')
random_line = rand(file_as_array.size)
#my_random_string = file_as_array[random_line]
# in your view:
<%= #my_random_string %>
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
I want to be able to break the line inside the brackets without having the "inconsistant brackets" error.
Here's a example:
select.someclass.something{data: {max_amount: o.max_amount_clean, max_amount: o.min_amount_clean, fee: o.fee_clean}}
Thanks
I'm not sure if I understand, but if the argument is a hash and not a block, like it seems, you could do
select.someclass.something(
{data:
{max_amount: o.max_amount_clean,
max_amount: o.min_amount_clean,
fee: o.fee_clean}}
)
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
Corona/Lua how to sort a table of strings from shortest to longest
Assuming your table is a indexed table and not a keyed one try
test = {'123','1234','1245','1','12'}
table.sort(test, function(a,b) return #a<#b end)
for i,v in ipairs(test) do
print (i,v)
end
The important line here is
table.sort(test, function(a,b) return #a<#b end)
Words will only sorted by length and order within matching lengths will be arbitrary. If you want to sort by additional criteria, extend the function for the sort
eg function(a,b) return #a<#b end