Interview Faqs & Ans: Javascript, NodeJS, ReactJS, AngularJS

Course Curriculum

Chapter 1: Introduction

Lecture 1: Introduction

Chapter 2: Interview Faqs & Ans: JavaScript

Lecture 1: what is javascript ?

Lecture 2: write a simple program in javascript ?

Lecture 3: try to call a function of the javascript by clicking on a button in the browser

Lecture 4: name the entity which is used to interact with the browser ?

Lecture 5: name the entity which is used to interact with the browser ?

Lecture 6: is the window object an object of javascript ?

Lecture 7: explain the usage of the function confirm ?

Lecture 8: explain the usage of the function prompt ?

Lecture 9: explain the usage of the function open() ?

Lecture 10: is it possible to navigate the history of urls visited by the user ?

Lecture 11: Please check if the below is a valid pgm ?

Lecture 12: can the document.write() function directly use the return value of a function as

Lecture 13: explain the concept of dynamic type language ?

Lecture 14: Validate the given statements ?

Lecture 15: do we really have '==' operator in javascript ?

Lecture 16: is it possible to create the html form in the run time ?

Lecture 17: in javascript, is the object created with out creating the class ?

Lecture 18: do we really require a constructor to create an array in javascript ?

Lecture 19: what is the diff in the output of 81 + 82 + "85" and "81" + 82 + 85 ?

Lecture 20: explain the client side javascript and server side javascript ?

Lecture 21: if a variable is undefined, do we have a null value in it ?

Lecture 22: list the pop boxes of javascript ?

Lecture 23: can we use the navigator.appVersion string to detect the version of the app we a

Lecture 24: can i use document.body.bgColor="yellow" to change the background color ?

Lecture 25: what is "undefined" and "not defined" ?

Lecture 26: what is the output of the code ?

Lecture 27: does creating private methods a memory efficient solution ?

Lecture 28: explain the concept of closure ?

Lecture 29: define the function add() which is called in the code given ?

Lecture 30: how can we empty the array ?

Lecture 31: does the delete operator affects the global/local variable of type number ?

Lecture 32: does the delete operator deletes the property of an object ?

Lecture 33: does the delete operator delete the prototype property ?

Lecture 34: what is the output of the given code ?

Lecture 35: what is the output of the given code ?

Lecture 36: what is the output of the given code ?

Lecture 37: explain the given code statements ?

Lecture 38: what is the output of the given code ?

Lecture 39: what is the sideeffect of typeof var1 === "object" ?

Lecture 40: what is the output of the given code ?

Lecture 41: what is the output of the given code ?

Lecture 42: why should i be putting the entire content of a javascript source file in a func

Lecture 43: what is "use strict" ?

Lecture 44: what is the output of the given code ?

Lecture 45: what is Nan ?

Lecture 46: what is the output of the given code ?

Lecture 47: what is the output of the given code ?

Lecture 48: write the function which finds out whether a string is a palindrome or not ?

Lecture 49: Implement the mul function called given ?

Lecture 50: what is the output of the given code ?

Lecture 51: what is the output of the given code ?

Lecture 52: what is the output of the given code ?

Lecture 53: what is the output of the given code ?

Lecture 54: what is the output of the given code ?

Lecture 55: what is the output of the given code ?

Lecture 56: what is the output of the given code ?

Lecture 57: what is the output of the given code ?

Lecture 58: what is the output of the given code ?

Lecture 59: what is the output of the given code ?

Lecture 60: what is the output of the given code ?

Lecture 61: what is the output of the given code ?

Lecture 62: what is the output of the given code ?

Lecture 63: what is the output of the given code ?

Lecture 64: what is the output of the given code ?

Lecture 65: what is the output of the given code ?

Lecture 66: what is the output of the given code ?

Lecture 67: what is the output of the given code ?

Lecture 68: explain the two ways of event propogation ?

Lecture 69: how can we close the current window in java script ?

Lecture 70: explain the concepts of let and var

Lecture 71: explain the concept of delegation model ?

Lecture 72: explain the concept of negative infinity ?

Lecture 73: state whether the given statements are true/false ?

Chapter 3: Interview Faqs & Ans: NodeJS

Lecture 1: explain nodejs

Lecture 2: who introduced Node.js and does the software costs us to use it ?

Lecture 3: does nodejs support event looping ?

Lecture 4: why do we need nodejs ?

Lecture 5: explain the api functions in nodejs ?

Lecture 6: what is that which is used to pass errors and data in nodejs ?

Lecture 7: what is meant by non-blocking apis ?

Lecture 8: what are the different options we can use to avoid having callback funtions ?

Lecture 9: what is that code segment which always run in between several asynchronous funct

Lecture 10: list functions which can be done in a non-blocking way using the event loop ?

Lecture 11: what are the different tools used to catch common errors during static analysis

Lecture 12: what is the output of the given code ?

Lecture 13: how child threads are handled in nodejs ?

Lecture 14: how unhandled exceptions are caught by nodejs ?

Lecture 15: when executed, does node.js really take advantage of multiple core resources in

Lecture 16: is the first argument passed to a callback handler really a optional error objec

Lecture 17: explain promises ?

Lecture 18: what is the name of the function which checks whether the variable value is a nu

Lecture 19: what is the problem with the given code snippet ?

Lecture 20: what is the difference between Node.js and Ajax ?

Lecture 21: explain chaining in nodejs ?

Lecture 22: explain streams in nodejs ?

Lecture 23: explain exit codes in nodejs ?