[Solved] What will be the output of this Python code?transactions = [{'id': 't1', 'amount': 100}, {'id': 't2', 'amount': 200}] ids = [t['id'] for t in transactions] print(ids) | LLD

LLD - Design — Splitwise (Expense Sharing)

What will be the output of this Python code?

transactions = [{'id': 't1', 'amount': 100}, {'id': 't2', 'amount': 200}]
ids = [t['id'] for t in transactions]
print(ids)

AError

B['t1', 't2']

C[100, 200]

D['amount', 'amount']

Step-by-Step Solution

Solution:

Step 1: Understand list comprehension extracting 'id'
It creates a list of the 'id' values from each transaction dictionary.
Step 2: Extract ids from given transactions
Ids are 't1' and 't2', so the list is ['t1', 't2'].
Final Answer:
['t1', 't2'] -> Option B
Quick Check:
List comprehension extracting ids = ['t1', 't2'] [OK]

Quick Trick: List comprehension extracts values by key [OK]

Common Mistakes:

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