JavaScript .size

Published Jun 16, 2022Updated Oct 8, 2022

The .size property returns the number of entries in a Map object.

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Syntax

set.size;

No parameters are needed for the .size property.

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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