Question

The purpose of extensible attribute is to __________ (a) make all of the own properties of that object non configurable (b) to configure and bring a writable property (c) “lock down” objects into a known state and prevent outside tampering (d) to include new properties into the object I got this question during an interview. Asked question is from Object Attributes and Serialization topic in section Lexical Structures of JavaScript Select the correct answer from above options JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

Right choice is (c) “lock down” objects into a known state and prevent outside tampering Easiest explanation: Extensible attributes determines whether the object can have new properties or not. Therefore extensible attribute will allow an object to include and write properties into them.