How to modify loop variable in ruby? -

for in (0..5)   if(i==0)     i=4   end   puts end 

in above program excepted output - 4 5

but instead - 4 1 2 3 4 5

so conclude loop variable isnt changing. how can change it? can tell me?

actually, in program need save current state of loop , retrive later on next start program resumes same point left.

the way you'll able modify loop variable use while loop:

x = (2..7).to_a = 0 while (i < x.length)   = 4 if == 0   puts x[i]   = + 1 end 

output:

6 7 

in for loop, you've discovered, can modify loop variable , value hold iteration of loop. on next iteration, retrieve next element range specified modified value overwritten.