使用 Ruby，我如何迭代 for 循环 n.times
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Using Ruby, how can I iterate over a for loop n.times
提问by TJ Sherrill
I have a basic ruby loop
我有一个基本的 ruby 循环
for video in site.posts
video.some_parameter
endfor
I want to run this loop 2 or 3 times.
我想运行这个循环 2 或 3 次。
Is this possible?
这可能吗？
回答by Hitham S. AlQadheeb
3.times do
# do work here
end
回答by Plasmarob
It's bad style to use for.
使用for的风格很糟糕。
3.times do
site.posts.each do |video|
video.some_parameter
end
end
or if video.some_parameteris one line,
或者如果video.some_parameter是一行，
3.times do
site.posts.each { |video| video.some_parameter }
end
see: https://github.com/bbatsov/ruby-style-guide#source-code-layout
见：https: //github.com/bbatsov/ruby-style-guide#source-code-layout
回答by ricks
If you need an index:
如果您需要索引：
5.times do |i|
print i, " "
end
Returns:
返回：
0 1 2 3 4
0 1 2 3 4
Reference: https://apidock.com/ruby/Integer/times
