Creating and Reading Hashes
Key-value storage.
What Is a Hash?
A Hash stores key-value pairs. Each key maps to one value, like a dictionary. Keys are unique.
person = { name: "Ada", age: 36 }
puts personReading a Value
Read a value with square brackets and its key.
person = { name: "Ada", age: 36 }
puts person[:name]
puts person[:age]All lessons in this course
- Symbols vs Strings
- Creating and Reading Hashes
- Hash Iteration
- Default Values and Merging