Angular - Reactive Forms
You want to create a form array of controls for multiple phone numbers using
FormBuilder. Which is the correct way?You want to create a form array of controls for multiple phone numbers using FormBuilder. Which is the correct way?
hard🚀 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Understand FormArray creation
Form arrays hold an array of controls, each created withfb.control().Step 2: Identify correct array syntax
this.fb.array([this.fb.control('123'), this.fb.control('456')]) correctly creates a FormArray with two controls initialized with phone numbers.Final Answer:
this.fb.array([this.fb.control('123'), this.fb.control('456')]) -> Option BQuick Check:
FormArray needs array of controls, not plain values [OK]
Quick Trick: Wrap each item in fb.control() inside fb.array() [OK]
Common Mistakes:
MISTAKES- Passing plain strings to array()
- Using group() instead of array()
- Using control() for multiple controls
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