Which of the following hash definitions will cause a syntax error in Ruby?

easy📝 Syntax Q12 of 15

Ruby - Hashes

A{ name => "Bob", age => 25 }

B{ :name => "Bob", :age => 25 }

C{ "name" => "Bob", "age" => 25 }

D{ name: "Bob", age: 25 }

Step-by-Step Solution

Solution:

Step 1: Review valid key syntax
Symbol keys can be written as :name => or name:. String keys must be quoted and use rocket syntax.
Step 2: Identify invalid syntax
{ name => "Bob", age => 25 } uses bare words as keys without colon or rocket, which is invalid and causes syntax error.
Final Answer:
SyntaxError -> Option A
Quick Check:
Bare words as keys need colon or rocket [OK]

Quick Trick: Keys must be symbols with colon or strings with quotes and rocket [OK]

Common Mistakes:

MISTAKES

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