This set of Javascript Multiple Choice Questions & Answers (MCQs) focuses on “HTML DOM”. 1. What is the reason for avoiding the attributes property in the HTML DOM? a) Found unnecessary b) Attributes don’t have attributes c) Attributes have attributes d) Considered irrelevant 2. What is the purpose of the method nodeMap.setNamedItem()? a) Sets ID … Read more
This set of Javascript Multiple Choice Questions & Answers (MCQs) focuses on “HTML APIs”. 1. Which program code doesn’t need preprocessing before being run? a) Text b) Script c) Both Text and Script d) Comment 2. What is the significance of scripting? a) Convenient b) Dynamic c) Reachable d) Modular 3. What is the purpose … Read more
This set of Javascript Multiple Choice Questions & Answers (MCQs) focuses on “External JavaScript and PHP”. 1. In which format does JavaScript support external JavaScript? a) .js b) .php c) .js/php d) .jss 2. What are the two parts of JavaScript libraries? a) “script” tag and “body” tag b) External JavaScript and the “script” tag … Read more
This set of Javascript Multiple Choice Questions & Answers (MCQs) focuses on “JavaScript and Memory Leak”. 1. Where are memory leaks found? a) Client side objects b) Server side objects c) Both Client side and Server side objects d) User side objects 2. Which handler is triggered when the content of the document in the … Read more
This set of Javascript Multiple Choice Questions & Answers (MCQs) focuses on “Blobs in JavaScript”. 1. BLOB stands for ______________ a) Binary Little Object b) Binary Large Object c) Broken Large Object d) Binary Small object 2. The size of blobs are generally calculated in ____________ a) Meters b) Kilometers c) Bytes d) Pixels 3. … Read more
This set of Javascript Multiple Choice Questions & Answers (MCQs) focuses on “Web Workers”. 1. Which of the following is one of the fundamental features of JavaScript? a) Single-threaded b) Multi-threaded c) Both Single-threaded and Multi-threaded d) Simple-threaded 2. Which of the following functions are synchronous? a) load() b) require() c) both load() and require() … Read more
This set of Javascript Multiple Choice Questions & Answers (MCQs) focuses on “The Closure Compiler”. 1. In how many modes can the closure compiler be run? a) 1 b) 2 c) 3 d) 4 2. What is the purpose of the simple mode? a) Removes whitespaces b) Does not remove white spaces c) Removes the … Read more
This set of JavaScript Problems focuses on “Cache Variables and Properties across Scope”. 1. What does the interpreter do when you reference variables in other scopes? a) Traverses the queue b) Traverses the stack c) Finds the bugs d) Traverse the array 2. The attribute location belongs to which element? a) document b) html c) … Read more
This set of JavaScript Questions and Answers for Entrance exams focuses on “Lazy Loading – II”. 1. What is the initial step to set up a CSS Lazy Loading? a) Fetching data b) Loading the script c) Loading the page d) Adding the event listener 2. What is being done in the following JavaScript code? … Read more
This set of Javascript Multiple Choice Questions & Answers (MCQs) focuses on “Lazy Loading – I”. 1. What is the purpose of lazy loading? a) Immediate loading is necessary b) Loading under command c) Immediate loading is not necessary d) Loading after a definite interval 2. Where is the external JavaScript placed in the case … Read more
