Ruby - Operators and Expressions
Which of the following is the correct syntax to assign 10 to variable
num only if num is nil or false?Which of the following is the correct syntax to assign 10 to variable num only if num is nil or false?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Identify correct operator syntax
The correct operator for conditional assignment is||=.Step 2: Match syntax with variable and value
num ||= 10assigns 10 only if num is nil or false.Final Answer:
num ||= 10 -> Option CQuick Check:
Correct ||= syntax = num ||= 10 [OK]
Quick Trick: Use ||= for conditional assignment in Ruby [OK]
Common Mistakes:
MISTAKES- Using =|| instead of ||= operator
- Placing || after the value
- Confusing with bitwise or operator
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