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In Angular, what is the primary benefit of using [(ngModel)] on form elements?

easy📝 Conceptual Q1 of 15
Angular - Templates and Data Binding
In Angular, what is the primary benefit of using [(ngModel)] on form elements?
AIt only updates the component property when the form is submitted.
BIt synchronizes the input value with the component property automatically.
CIt disables the input element until the component property changes.
DIt binds the input value to a CSS class dynamically.
Step-by-Step Solution
Solution:
  1. Step 1: Understand ngModel

    [(ngModel)] creates a two-way data binding between the input element and the component property.
  2. Step 2: Effect of two-way binding

    Changes in the input update the property, and changes in the property update the input value automatically.
  3. Final Answer:

    It synchronizes the input value with the component property automatically. -> Option B
  4. Quick Check:

    Two-way binding means automatic sync both ways [OK]
Quick Trick: Two-way binding keeps input and property in sync [OK]
Common Mistakes:
  • Thinking ngModel only updates on form submit
  • Confusing ngModel with one-way binding
  • Assuming ngModel disables inputs

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