Which of the following is the shorthand way to define a Ruby hash with symbol keys for :name and :age?

easy📝 Syntax Q3 of 15

Ruby - Hashes

A{ name: 'Alice', age: 30 }

B{ 'name' => 'Alice', 'age' => 30 }

C{ :name => 'Alice', :age => 30 }

D{ name => 'Alice', age => 30 }

Step-by-Step Solution

Solution:

Step 1: Recognize symbol key syntax
Ruby allows symbol keys to be defined with the shorthand syntax: key: value, which is equivalent to :key => value.
Step 2: Identify correct syntax
{ name: 'Alice', age: 30 } uses the shorthand symbol key syntax correctly.
Final Answer:
{ name: 'Alice', age: 30 } -> Option A
Quick Check:
Symbol key shorthand syntax = B [OK]

Quick Trick: Use key: value for symbol keys, not quotes for strings [OK]

Common Mistakes:

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