Bird
0
0

Analyze this Angular signal code snippet:

medium📝 Debug Q6 of 15
Angular - Signals
Analyze this Angular signal code snippet:
const clicks = signal(0);
clicks = 10;
console.log(clicks());

What is the issue with this code?
ASignals are immutable; you cannot reassign the signal variable.
BAll of the above.
CCalling clicks() after reassignment will throw an error.
DThe signal value should be updated using clicks.set(10).
Step-by-Step Solution
Solution:
  1. Step 1: Understand signal immutability

    Signals are objects created by signal() and should not be reassigned.
  2. Step 2: Correct way to update value

    To update the signal's value, use clicks.set(10), not reassignment.
  3. Step 3: Consequence of reassignment

    Reassigning clicks to a number breaks the signal reference; calling clicks() will cause an error.
  4. Final Answer:

    All of the above -> Option B
  5. Quick Check:

    Signals must be updated, not reassigned [OK]
Quick Trick: Never reassign signal variables; use set() to update [OK]
Common Mistakes:
  • Reassigning the signal variable instead of updating its value
  • Not using the set() method to change signal value
  • Expecting signals to behave like primitive variables

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