Ruby Until Loop

An until statement s conditional is separated from code by the reserved word do a newline or a semicolon.

Ruby until loop. Until conditional do code end example. The ruby until loop runs until the given condition evaluates to true. The following script prints the numbers 1 through 10. An until loop s conditional is separated from code by the reserved word do a newline backslash or a semicolon.

The variable is incremented by one until its value equals ten. End in the above outline expression is a ruby expression which must evaluate to true or false the ruby code here marker is where the code to executed is placed. This example is the functional equivalent of the while loop example except using an until loop until i 10. The until loop executes while a condition is false.

Like a while loop the do is optional. Usr bin env ruby i 0 until i 10 i 1 end puts i loops the ruby way though the more traditional while and until loops are used in ruby programs closure based. This code will be repeatedly executed until. The until loop allows you to write code which is more readable and logical.

Inside the loop i 0 inside the loop i 1 inside the loop i 2 inside the loop i 3 inside the loop i 4 ruby until statement until conditional do code end executes code while conditional is false. It exits the loop when condition becomes true. An until statement s conditional is separated from code by the reserved word do a newline or a semicolon. While expression do.

It is just opposite of the while loop which runs until the given condition evaluates to false.