# 
## Overview
In Ruby, **`rstrip`**, or right strip, removes a trailing whitespace character in a string. This whitespace character could be a space, null, horizontal, or vertical tab, line feed, form feed, carriage return, etc.

## Syntax
```ruby
str.rstrip
```

## Parameters
**str**: This is the string from which we want to remove trailing whitespace characters.

## Return value
The value returned is a string with any trailing string removed.

## Code example


# create strings
str1 = "Edpresso     "
str2 = "is"
str3 = "The\n\t\r"
str4 = "\Best     !"

# remove leading 
# whitespace characters
puts str1.rstrip
puts str2.rstrip
puts str3.rstrip
puts str4.rstrip

## Explanation
* **Line 2 to line 5**: We create some strings from which we want to remove trailing whitespace characters.

* **Line 9 to line 12**: We use the `strip` method to remove trailing whitespace characters from the strings. Then, we print the result.

What is the Ruby rstrip method of string? 

Removes trailing whitespace characters from a string, including spaces and tabs. Returns modified string.