Activity Forums Salesforce® Discussions What is the use of !$A.util.isUndefined() in Salesforce Lightning Component?

  • What is the use of !$A.util.isUndefined() in Salesforce Lightning Component?

    Posted by Shweta on September 11, 2020 at 3:02 pm

    What is the use of !$A.util.isUndefined() in Salesforce Lightning Component?

    Aditya replied 4 years, 2 months ago 2 Members · 1 Reply
  • 1 Reply
  • Aditya

    Member
    September 12, 2020 at 8:11 pm

    <samp>component.get(String key)</samp> and <samp>component.set(String key, Object value)</samp> retrieves and assigns values associated with the specified key on the component. Keys are passed in as an expression, which represents an attribute value.

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