array = [1, 2, 3, 4, 5] array.each do |item| puts "Item is #{item}" end 5. times 方法 times 方法用于重复执行代码块指定次数。 ruby 5.times do |i| puts "i is #{i}" end 6. loop 方法 loop 方法用于创建一个无限循环,需要使用 break 语句来退出循环。 ruby i = 0 loop do puts...
PHP foreach loop array I have a script where it's displaying user info on a leader board. It's grabbing each user's display info through the 'registrations' table as shown in the top sql, however their back-end info (userna... ...
The for loop, or for/in loop, iterates through the elements of an enumerable object (such as an array). On each iteration, it assigns an element to a specified loop variable and then executes the body of the loop. A for loop looks like this: for var in collection do body end var ...
$ git ls-remote https://github.com/ruby/ruby.git You may also want to use https://git.ruby-lang.org/ruby.git (actual master of Ruby source) if you are a committer.How to buildSee Building RubyRuby home pagehttps://www.ruby-lang.org/...
literals, and to group and separate expressions, method arguments, and array indexes. We’ll see miscellaneous other uses of punctuation scattered throughout Ruby syntax. 标识符: 标识符不包含标点符号。 以从A到Z这26个大写字母开头的标识符是常量,如果你试图修改一个这样的标识符,ruby解释器会发出警告(...
literals, and to group and separate expressions, method arguments, and array indexes. We’ll see miscellaneous other uses of punctuation scattered throughout Ruby syntax. 标识符: 标识符不包含标点符号。 以从A到Z这26个大写字母开头的标识符是常量,如果你试图修改一个这样的标识符,ruby解释器会发出警告(...
loop do num += 1 print "Ruby!" break if num == 30 end The .split Method, text.split(",") puts "Text to search through: " text = gets.chomp puts "Word to redact" redact = gets.chomp words = text.split(" ") words.each do |word| ...
It is a better practice to use enumerable methods, like: #each, #map, #select, #inject, #reject and #detect instead to iterate through an array or objects. Not to mention that using #each is considered a more idiomatic use of Ruby. Let’s show this with an example: loop1 = [] ...
Open Compiler #!/usr/bin/ruby $, =", " # Array value separator range1 = (1..10).to_a range2 = ('bar'..'bat').to_a puts "#{range1}" puts "#{range2}" This will produce the following result −[1, 2, 3, 4, 5, 6, 7, 8, 9, 10] ["bar", "bas", "bat"] ...
In the script we loop through theARGVarray and print each of its values. $ ./command_line.rb 1 2 3 Argument: 1 Argument: 2 Argument: 3 We have given three command-line arguments. They are printed to the console, each on a separate line. ...