#        
#  Overview
The **prefix** of a string is either a string or a character with which the string begins. To delete the prefix of a string, we can use the `delete_prefix()` method in Ruby.

When this method is called, it returns a copy of the original string but with the specified prefix deleted.

#         
#  Syntax
```ruby
str.delete_prefix(prefix)
```

#        
## Parameters


`prefix`: This is the specified prefix we want to delete from `str`.

##       
## Return value
The value returned is a string that is a copy of `str` but with the prefix removed.

##         
## Code example


# create strings
str1 = "welcome"
str2 = "to"
str3 = "Edpresso"

# delete prefix
a = str1.delete_prefix!("wel")
b = str2.delete_prefix("o")
c = str3.delete_prefix("Ed")

# print results
puts a
puts b
puts c

ruby

#           
## Explanation

- In lines `2`-`4`, the strings are created.
- In lines `7`-`9`, their prefix is deleted using the `delete_prefix()` method.
- In lines `12`-`14`, their results are printed. 

As can be seen above, the prefixes of the strings were removed except for `str2`. In `line 8`, `o` is not a prefix of `str2`. Thus, no prefix was removed for `str2`.

ruby.tar.gz

How to delete the prefix of a string in Ruby

Use delete_prefix() in Ruby to remove a specified prefix from a string, returning the modified string.