Ruby - Hashes
What will be the output of this Ruby code?
```ruby
def order_summary(details = {})
"Item: #{details[:item]}, Quantity: #{details[:quantity] || 1}"
end
puts order_summary(item: 'Book')
```
What will be the output of this Ruby code? ```ruby def order_summary(details = {}) "Item: #{details[:item]}, Quantity: #{details[:quantity] || 1}" end puts order_summary(item: 'Book') ```
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Analyze default quantity handling
details[:quantity] is nil, so || 1 returns 1 as default.Step 2: Substitute values in output string
details[:item] is 'Book', so output is "Item: Book, Quantity: 1".Final Answer:
Item: Book, Quantity: 1 -> Option DQuick Check:
Default value with || operator works [OK]
Quick Trick: Use || to provide default values for missing keys [OK]
Common Mistakes:
- Expecting nil to print instead of default
- Confusing || with && operator
- Assuming missing keys cause errors
Master "Hashes" in Ruby
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