ruby simbolize element from hash

To symbolize an element from a hash in Ruby, you can use the to_sym method. This method converts a string to a symbol, which can then be used as a key in a hash.

Here are the steps to symbolize an element from a hash in Ruby:

1. Start by defining a hash with key-value pairs. For example: ruby hash = { "name" => "John", "age" => 30, "city" => "New York" }

2. To symbolize a specific key from the hash, use the to_sym method on the key. For example, to symbolize the "name" key: ruby symbolized_key = "name".to_sym

3. Access the value associated with the symbolized key using the symbolized key as the index of the hash. For example: ruby value = hash[symbolized_key]

In this case, value will be equal to "John".

By symbolizing a key from a hash, you can access its corresponding value using the symbolized key. This can be useful when working with hashes in Ruby, as symbols are often used as keys for better performance and memory efficiency.