location of a string ruby
Finding the Location of a String in Ruby
To find the location of a string in Ruby, you can use the index
method. The index
method returns the position of the first occurrence of a substring within a string. Here's how you can use it:
string = "Hello, world!"
substring = "world"
location = string.index(substring)
puts location
In this example, the index
method is called on the string
variable with the substring
as an argument. The method returns the index of the first occurrence of the substring
within the string
. The result is then printed to the console.
The output of the above code will be:
7
This means that the substring "world" starts at index 7 in the string "Hello, world!".
Please note that the index
method returns nil
if the substring is not found in the string.