Question

What is the purpose of garbage collection? (a) Removes object with many reference (b) Removes object with reference (c) Removes object with invalid reference (d) Removes object with no reference The question was posed to me by my school principal while I was bunking the class. The doubt is from Performance Navigation and Memory in section Invocation and Performance Navigation 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 answer is (d) Removes object with no reference Explanation: When the interpreter sees an object in the heap with no object references, it removes that object from the heap. This is called garbage collection. An object is considered garbage collectible if there are zero references pointing at this object.