[Solved] What is wrong with this availability check snippet?availability = {"slot1": True} if availability.get("slot1") == True: print("Available") else: print("Not Available") | LLD

LLD - Design — Hotel Booking System

What is wrong with this availability check snippet?

availability = {"slot1": True}
if availability.get("slot1") == True:
    print("Available")
else:
    print("Not Available")

AIt fails if slot1 key is missing

BIt always prints 'Available' regardless of value

CIt causes a syntax error

DIt uses wrong comparison operator

Step-by-Step Solution

Solution:

Step 1: Understand get() without default
availability.get("slot1") returns None if key missing.
Step 2: Compare None to True
None == True is False, so else branch runs if key missing.
Step 3: Identify problem
If key missing, code treats as 'Not Available' but no explicit default is set.
Final Answer:
It fails if slot1 key is missing -> Option A
Quick Check:
get() without default returns None if missing [OK]

Quick Trick: Always provide default in get() to avoid None [OK]

Common Mistakes:

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What is wrong with this availability check snippet?