![]() Method name should always start with a lowercase letter.ġ8) In how many ways a block is written in Ruby?īoth are same and have the same functionality. To use a Ruby method, we need to first define it. It is a unique type of method and predefined in Ruby library. Objects in Ruby are created by calling new method of the class. Ruby methods are similar to functions in other languages. Ruby method prevent us from writing the same code in a program again and again. They do not take part in the execution of a program. Ruby comments are non-executable lines in a program. Ruby retry statement is used to repeat the whole loop iteration from the start. The redo statement is executed without evaluating loop’s condition.ġ3) Explain retry statement in Ruby? Retry statement in ruby Ruby redo statement is used to repeat the current iteration of the loop. It is mostly used in while loop where value is printed till the condition is true. Ruby break statement is used to terminate a loop. ![]() Ruby while loop is used to iterate a program several times. In cases where loading the code required every time when changed or every times someone hits the URL, it is suggested to use ‘load’. In Ruby, load and require both are used for loading the available code into the current code. Ruby data types represent type of data such as text, string, numbers, etc.ĩ) What is the use of load and require in Ruby? In case of a predicate, true or false is returned by a method. Nil is returned where there is no predicate There are four types of variables in Ruby:ħ) What is the difference between nil and false in Ruby? Nil ![]() Each variable act as a memory and shas a different name. Ruby variables hold data which can be used later in a program. Operators are a symbol which is used to perform different operations. Following is a list of domains which has relevant class libraries: Ruby class libraries contain variety of domain such as thread programming, data types, various domains. Matsumoto chose the later one as it was the birthstone of one of his colleagues. Two names were selected, “Coral” and “Ruby”. The name “Ruby” originated during a chat session between Matsumoto and Keiju Ishitsuka. Ruby is designed and developed by Yukihiro “Martz” Matsumoto in mid 1990s in Japan. Ruby was designed to developed a new language which makes a stability with the functionality of Imperative languages. Ruby has a blended functions of Perl, small talk, Eiffel, Ada and Lisp. Ruby is a dynamic, reflective, open source programming language that aims on simplicity and productivity. 1) What is Ruby programming language? Ruby programming
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