Ruby - Hashes
Which of the following is the correct syntax to get all keys from a hash named
h?Which of the following is the correct syntax to get all keys from a hash named h?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Recall the method name for keys
The correct method to get all keys iskeys, called with parentheses optionally.Step 2: Check syntax correctness
h.keys()is valid Ruby syntax and returns an array of keys.Final Answer:
h.keys() -> Option BQuick Check:
Method to get keys = keys() [OK]
Quick Trick: Use keys() to get all keys from a hash [OK]
Common Mistakes:
MISTAKES- Using key() instead of keys()
- Using non-existent methods like get_keys
- Trying to access keys as properties
Master "Hashes" in Ruby
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