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Lesson 13 - Object Properties in JavaScript - Accessor Descriptors

In the previous lesson, Object Properties in JavaScript - Data Descriptors, we introduced object property descriptors. Today, we're going to continue with access descriptors that are even more interesting.

Let's again show the table of keys of both descriptors types:

Data Accessor
value get
writable set
configurable configurable
enumerable enumerable

Accessor Descriptors

We've already discussed 2 of the keys in the last lesson, these are configurable and enumerable. They both work on the same principle here, so we won't deal with them again. We'll show the other two, get and set.

Getters and setters are


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Article description

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This tutorial explains more about JavaScript descriptors, now the ones reacting to reading and writing to object properties. We'll learn seal and freeze.

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Article has been written for you by Štěpán Zavadil