Ruby syntax

Let's compose a straightforward Ruby program. All Ruby document augmentations are .rb. In this way, put the source code beneath in the test.rb document.

Here, assume you have a Ruby mediator accessible in your/usr/container registry. Presently have a go at running this program as follows:

$ ruby test.rb 

This will deliver the accompanying results:

Hello, Ruby!

You have seen a basic Ruby program, presently how about we investigate a portion of the essential ideas identified with Ruby syntax:

Blank in Ruby program

Blank characters in Ruby code, for example, spaces and tabs, are for the most part overlooked except if they show up in a string and are not disregarded. Notwithstanding, once in a while they are utilized to clarify equivocal articulations. This elucidation creates a notice when the - w choice is empowered.

Instance:

a + b interpreted as a+b (This is a neighborhood variable) 

a +b  is translated as a(+b)< Span class="pln"> (This is a strategy call)

The stopping point in the Ruby program

Ruby translates semicolons and newlines as the finish of an announcement. Be that as it may, if Ruby experiences administrators toward the stopping point, for example, +, - or oblique punctuation lines, they speak to a continuation of an announcement.

Ruby Identifier

Identifiers are the names of factors, constants, and techniques. Ruby identifiers are case touchy. This implies Ram and RAM are two distinct identifiers in Ruby.

The name of a Ruby identifier can contain letters, numbers, and underscore characters ( _ ).

Reserved words

The following table records the saved words in Ruby. These saved words can't be utilized as names for constants or factors. In any case, they can be utilized as strategy names.

Here Document in Ruby

"Here Document" alludes to the making of multi-line strings. After <<, you can indicate a string or identifier to end the string, and all lines after the present line up to the eliminator are the estimation of the string.

If the eliminator is encased in quotes, the sort of statements decides the line-arranged string type. Note that there must be no spaces between the << and eliminators.

The following are distinctive examples:

This will produce the following results:

This is the first way to createhere document . 
Multi-line strings. 
This is the second way to createhere document . 
Multi-line strings. 
Hi there
Lo there
I said foo.
I said bar.

Ruby BEGIN statement

Syntax

BEGIN {
   Code
}

Declaration code will be called before the program runs.

Instance

This will produce the following results:

initialize Ruby Programs
This is the main Ruby Programs

Ruby END statement

Syntax

END {
   Code
}

Declaration code will be called at the end of the program.

This will produce the following results:

initialize Ruby Programs
This is the main Ruby Programs
Stop Ruby Programs

Ruby Notes

Comments conceal a line from the Ruby mediator, or a piece of a line, or a couple of lines. You can utilize the character ( # ) toward the start of the line:

Or, the remark can pursue a similar line of the announcement or expression:

You can comment multiple lines as follows:

The following is another form. This block comment hides the line between =begin/=end on the interpreter: