ruby - Reading a line from a text file, splitting the string version of that line into two parts -

newbie learning ruby.

i trying take txt file , on each line take first 3 characters , assign them key, , rest of string that's keys value.

f = file.open("textfile.txt", "r") finalhash = {"key" => "data"} linestring = ""   while f.gets != nil   linestring = f.gets   part1 = linestring.slice(0, 2)   part2 = linestring.slice(3, linestring.length)   finalhash[:part1] = part2 end  puts finalhash 

any advice appreciated!

the 2nd parameter of slice length, not end-index, change:

part1 = linestring.slice(0, 2) 

to:

part1 = linestring.slice(0, 3) 

if passed start index , length, returns substring containing length characters starting @ index

also don't need second parameter here (this not bug though):

part2 = linestring.slice(3, linestring.length) 

this enough:

part2 = linestring.slice(3)