[Solved] What is wrong with this code if the goal is to log the route parameter 'id' whenever it changes?ngOnInit() { const id = this.route.snapshot.params['id']; console.log(id); } | Angular

Angular - Routing

What is wrong with this code if the goal is to log the route parameter 'id' whenever it changes?

ngOnInit() {
  const id = this.route.snapshot.params['id'];
  console.log(id);
}

AShould use queryParams instead of params

Bsnapshot.params is undefined

CIt only logs once and misses future changes

DMissing subscription to params observable

Step-by-Step Solution

Solution:

Step 1: Understand snapshot behavior
snapshot.params gives the parameters at component creation time only.
Step 2: Identify limitation
If the route parameter changes while the component is active, snapshot.params does not update, so changes are missed.
Final Answer:
It only logs once and misses future changes -> Option C
Quick Check:
snapshot is static, misses param changes = A [OK]

Quick Trick: Use params observable to catch param changes, not snapshot [OK]

Common Mistakes:

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What is wrong with this code if the goal is to log the route parameter 'id' whenever it changes?