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Version: 4.0.1

Object.isFrozen()

The Object.isFrozen() determines if an object is frozen.

Syntax​

Object.isFrozen(obj)

Parameters​

  • obj
    • : The object which should be checked.

Return value​

A Boolean indicating whether or not the given object is frozen.

Description​

An object is frozen if and only if it is not extensible, all its properties are non-configurable, and all its data properties (that is, properties which are not accessor properties with getter or setter components) are non-writable.