[Solved] Identify the error in this Angular component code using input signals:export class SampleComponent { @Input() data = signal(); ngOnInit() { this.data.set('Hello'); } } | Angular

Angular - Signals

Identify the error in this Angular component code using input signals:

export class SampleComponent {
  @Input() data = signal();

  ngOnInit() {
    this.data.set('Hello');
  }
}

AInput signals must be readonly

BMissing initial value for signal()

CngOnInit() is not allowed in standalone components

DCannot call set() on input signals

Step-by-Step Solution

Solution:

Step 1: Check signal initialization
The signal data is declared without an initial value, which is invalid.
Step 2: Understand signal requirements
Signals must have an initial value when created, so signal() without arguments causes an error.
Final Answer:
Missing initial value for signal() -> Option B
Quick Check:
Signals need initial values [OK]

Quick Trick: Always initialize signals with a value [OK]

Common Mistakes:

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