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26. JavaScript Object property flags and descriptors: writable, enumerable, configurable
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Property flags
Object properties, besides a value, have three special attributes (so-called “flags”):
writable – if true, the value can be changed, otherwise it’s read-only.
enumerable – if true, then listed in loops, otherwise not listed.
configurable – if true, the property can be deleted and these attributes can be modified, otherwise not.
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Object properties, besides a value, have three special attributes (so-called “flags”):
writable – if true, the value can be changed, otherwise it’s read-only.
enumerable – if true, then listed in loops, otherwise not listed.
configurable – if true, the property can be deleted and these attributes can be modified, otherwise not.
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