What is the central concept of JavaScript memory management?(a) Reliability(b) Reachability(c) Efficiency(d) TransparencyThe question was asked in final exam.This is a very interesting question from JavaScript and Memory Leak in chapter Caching, Debugging and Animation of JavaScript

What is the central concept of JavaScript memory management?(a) Reliab

1.	What is the central concept of JavaScript memory management?(a) Reliability(b) Reachability(c) Efficiency(d) TransparencyThe question was asked in final exam.This is a very interesting question from JavaScript and Memory Leak in chapter Caching, Debugging and Animation of JavaScript
Answer» Right choice is (b) Reachability The explanation: The central concept of JAVASCRIPT memory MANAGEMENT is a concept of reachability. The main cause for leaks in garbage collected languages are UNWANTED references. A distinguished set of objects are assumed to be reachable: these are known as the roots. Typically, these include all the objects referenced from anywhere in the call stack (that is, all local VARIABLES and parameters in the functions currently being invoked), and any global variables. Objects are kept in memory while they are accessible from roots through a reference or a CHAIN of references.

Discussion

No Comment Found

Related InterviewSolutions

Which is the function used to loop in an array to view all the values?(a) all()(b) loop()(c) each()(d) every()The question was asked in an online quiz.My question is taken from Comparison of Core JavaScript versus Frameworks topic in division Caching, Debugging and Animation of JavaScript
Which of the following is not an object?(a) Element(b) Location(c) Position(d) WindowThis question was addressed to me in an interview.My query is from Comparison of Core JavaScript versus Frameworks topic in division Caching, Debugging and Animation of JavaScript
Which class provides an interface for invoking JavaScript methods and examining JavaScript properties?(a) ScriptObject(b) JSObject(c) JavaObject(d) JobjectThe question was posed to me in a national level competition.This interesting question is from Comparison of Core JavaScript versus Frameworks in portion Caching, Debugging and Animation of JavaScript
Which is a wrapped Java array, accessed from within JavaScript code?(a) JavaArray(b) JavaClass(c) JavaObject(d) JavaPackageThe question was posed to me during a job interview.Asked question is from Comparison of Core JavaScript versus Frameworks topic in section Caching, Debugging and Animation of JavaScript
Which of the following has a greater benchmark time for looping and JQuery vs core JavaScript in milliseconds?(a) Chrome JQuery(b) Chrome JavaScript(c) Firefox JQuery(d) Firefox JavaScriptThis question was posed to me in a national level competition.My query is from Comparison of Core JavaScript versus Frameworks in section Caching, Debugging and Animation of JavaScript
What kind of error notifications are shown in the console window?(a) Syntax error(b) Runtime error(c) Both Syntax error and Runtime error(d) Compilation errorThe question was posed to me in an interview for job.I'm obligated to ask this question of Forms of Debugging topic in portion Caching, Debugging and Animation of JavaScript
Which of the following is not a JavaScript framework?(a) Rico(b) Prototype(c) Joco(d) DoJoI had been asked this question in exam.My query is from Comparison of Core JavaScript versus Frameworks topic in division Caching, Debugging and Animation of JavaScript
What is the framework?(a) User time efficiency(b) Author time efficiency(c) Both User time and Author time efficiency(d) Client time efficiencyI got this question by my college professor while I was bunking the class.Query is from Comparison of Core JavaScript versus Frameworks topic in portion Caching, Debugging and Animation of JavaScript
What is the syntax of close method for document object?(a) Close(object)(b) Close(doc)(c) Close(val)(d) Close()This question was posed to me by my college director while I was bunking the class.Query is from Comparison of Core JavaScript versus Frameworks topic in portion Caching, Debugging and Animation of JavaScript
Which of the following is the window that the Firefox sends the error messages to?(a) Bug Window(b) Error Issues(c) Error Window(d) Error ConsoleThis question was posed to me during an internship interview.My enquiry is from Forms of Debugging topic in section Caching, Debugging and Animation of JavaScript

What is the central concept of JavaScript memory management?(a) Reliability(b) Reachability(c) Efficiency(d) TransparencyThe question was asked in final exam.This is a very interesting question from JavaScript and Memory Leak in chapter Caching, Debugging and Animation of JavaScript

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment