JavaScript .add()

Published Jun 16, 2022

The .add() method inserts a value into a Set (if it is unique) and returns the updated Set object.

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Syntax

set.add(value);

The value in set is unique and of a valid data type.

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Career path
Front-End Engineer
Front-end engineers work closely with designers to make websites beautiful, functional, and fast.
Includes 34 Courses
With Professional Certification
Beginner Friendly.
115 hours
Free course
Learn JavaScript
Learn how to use JavaScript — a powerful and flexible programming language for adding website interactivity.
Beginner Friendly.
15 hours