Activity › Forums › Salesforce® Discussions › What are Bound and Unbound Expressions in Lightning Components ?

  • Deepak

    Member
    May 26, 2020 at 2:33 pm

    When you use a bound expression, a change in the attribute in the parent or child component triggers the change handler in both components. When you use an unbound expression, the change is not propagated between components so the change handler is only triggered in the component that contains the changed attribute.

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