What is the sequence of Ruby string Mcq?

8. What is the sequence of ruby strings? Explanation: They are simply the sequence of 8-bit bytes. 9.

What are the sequence of Ruby strings?

In Ruby, string is a sequence of one or more characters. It may consist of numbers, letters, or symbols. Here strings are the objects, and apart from other languages, strings are mutable, i.e. strings can be changed in place instead of creating new strings.

What will be output for the following code STR Letsfindcourse Ruby MCQS puts STR 2 *?

Explanation: passing index as an argument which returns the specified character , so t is the output. 10. What will be output for the following code?

Which sequence can be used to substitute the value of any Ruby expression in a string?

7. Which sequence can be used to substitute the value of any ruby expression in a string? Explanation: #{expr} is valid. 8.

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Which of the following datatypes are valid in Ruby?

Which of the following datatypes are valid in Ruby? Explanation: Ruby supports all the three (numbers,strings,boolean) data types. 2.

What are strings in Ruby?

A string is a sequence of one or more characters that may consist of letters, numbers, or symbols. Strings in Ruby are objects, and unlike other languages, strings are mutable, which means they can be changed in place instead of creating new strings.

How do you find the length of a string in Ruby?

length is a String class method in Ruby which is used to find the character length of the given string.

  1. Syntax: str.length.
  2. Parameters: Here, str is the string whose length is to be calculated.
  3. Returns:It will return the character length of the str.

What will be the output when we execute List Hello?

Discussion Forum

Que. What is the output when we execute list(“hello”)?
b. [‘hello’].
c. [‘llo’].
d. [‘olleh’].
Answer:[‘h’, ‘e’, ‘l’, ‘l’, ‘o’].

Which of the following is the correct way of writing comments?

A comment starts with a slash asterisk /* and ends with a asterisk slash */ and can be anywhere in your program. Comments can span several lines within your C program. Comments are typically added directly above the related C source code.

Which is not integer data type Mcq?

Answer: B. Char is NOT an Integer.

Why do we use begin and end in Ruby Mcq?

Explanation: We use =begin and =end to mark the beginning and end of the comment. 8. The following is the correct way to use multiline comment.

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How do you replace a string in Ruby?

Changing a Section of a String

Ruby allows part of a string to be modified through the use of the []= method. To use this method, simply pass through the string of characters to be replaced to the method and assign the new string.

Why do we use begin and end in Ruby?

Every Ruby source file can run as the BEGIN blocks when the file is being loaded and runs the END blocks after the program has finished executing. The BEGIN and END statements are different from each other. Note :If an END statement is used in a loop Then it is executed more than once. …

What is Array in Ruby?

Ruby arrays are ordered, integer-indexed collections of any object. … Ruby arrays can hold objects such as String, Integer, Fixnum, Hash, Symbol, even other Array objects. Ruby arrays are not as rigid as arrays in other languages. Ruby arrays grow automatically while adding elements to them.

What is datatype in Ruby?

Data types in Ruby represent different categories of data such as text, string, numbers, etc. Since Ruby is an object-oriented language, all its supported data types are implemented as classes.

Is Ruby a language?

Ruby is a language of careful balance. Its creator, Yukihiro “Matz” Matsumoto, blended parts of his favorite languages (Perl, Smalltalk, Eiffel, Ada, and Lisp) to form a new language that balanced functional programming with imperative programming.