开发者

How to create an integer-for-loop in Ruby?

开发者 https://www.devze.com 2023-02-18 19:17 出处:网络
I have a variable \"x\" in m开发者_如何学Goy view. I need to display some code \"x\" number of times.

I have a variable "x" in m开发者_如何学Goy view. I need to display some code "x" number of times.

I basically want to set up a loop like this:

for i = 1 to x
  do something on (i)
end

Is there a way to do this?


If you're doing this in your erb view (for Rails), be mindful of the <% and <%= differences. What you'd want is:

<% (1..x).each do |i| %>
  Code to display using <%= stuff %> that you want to display    
<% end %>

For plain Ruby, you can refer to: http://www.tutorialspoint.com/ruby/ruby_loops.htm


x.times do |i|
    something(i+1)
end


for i in 0..max
   puts "Value of local variable is #{i}"
end

All Ruby loops


You can perform a simple each loop on the range from 1 to `x´:

(1..x).each do |i|
  #...
end


Try Below Simple Ruby Magics :)

(1..x).each { |n| puts n }
x.times { |n| puts n }
1.upto(x) { |n| print n }
0

精彩评论

暂无评论...
验证码 换一张
取 消