What are the differences between WeakSet and Set

The main difference is that references to objects in Set are strong while references to objects in WeakSet are weak. i.e, An object in WeakSet can be garbage collected if there is no other reference to it. Other differences are,

1. Sets can store any value Whereas WeakSets can store only collections of objects
2. WeakSet does not have size property unlike Set
3. WeakSet does not have methods such as clear, keys, values, entries, forEach.
4. WeakSet is not iterable.

If you like this question & answer and want to contribute, then write your question & answer and email to freewebmentor[@]gmail.com. Your question and answer will appear on FreeWebMentor.com and help other developers.

Related Questions & Answers

• Is it possible to override the result of get_template_part()?
• How to run action in Ember Controller afterRender?
• How to use order by for multiple columns in Laravel 4?
• How can the applets be displayed in the JSP?
• Flutter Switch onChanged Not Changing
• Easy way to get a test file into JUnit
• How to remove an array element in a foreach loop?
• What are the supported standard data types in Python?
• What’s the difference between “include” and “require” in Ruby?
• How to remove biography from user profile admin page?
• How to add Google Analytics for React Router?
• How to fix android.os.NetworkOnMainThreadException?
• How to set ANDROID_HOME in MacOS?
• New Media Library Column to Re-Attach Images
• How to custom tracking code for the thanks page in WooCommerce?