Missing ‘=’ operator after key in hash literal

Description:

This error occurs when you try to create a hash literal without using the ‘=’ operator between the key and value.
In Ruby, hashes are key-value pairs, and each key-value pair is separated by a comma. The ‘=’, or equals operator,
is used to assign a value to each key.

Without the ‘=’ operator, Ruby will interpret the code as an attempt to create a hash with a missing key-value assignment,
leading to the “missing ‘=’ operator after key in hash literal” error.

Examples:

Let’s consider some examples to better understand the error.

Example 1:

    
      # Incorrect usage without '=' operator
      hash = { key1: "value1", key2 "value2" }
      
      # Corrected usage
      hash = { key1: "value1", key2: "value2" }
    
  

In the given example, the incorrect usage of missing ‘=’ operator after the key ‘key2’ will result in the error.
The corrected usage includes the ‘=’ operator after the key, ensuring the hash is properly defined.

Example 2:

    
      # Incorrect usage without '=' operator
      hash = { "key1" => "value1", "key2" "value2" }
      
      # Corrected usage
      hash = { "key1" => "value1", "key2" => "value2" }
    
  

This example demonstrates another case using the older hash syntax. The incorrect usage of missing ‘=’ operator after the
key ‘key2’ will produce the same error. The corrected usage includes the ‘=’ operator after each key-value pair.