Top Interview Questions and Answers
One of the most useful technology now a day is – Javascript. The demand of Java Script professionals are growing day by day. Many frameworks and library of javascript like React, Angular, jQuery, Vue JS is making software development easy and smooth. Almost the big companies and institutions are working on Java Script Technologies. So the demand for skilled people is very high. You can have several interviews offers, so you need to brush up your knowledge with a few tricks and common questions asked in JavAScript Interview. We are going to give you such a platform where you can do so. We have Reactjs Interview Question, Angular interview questions, JQuesry interview Questions, and other Common Asked interview questions from a javascript professional. These Interview Questions are very useful for freshers candidates as well as for Experienced too.
ES6 stands for ECMAScript 6. ECMAScript was created to standardise JavaScript, and ES6 is the 6th version of ECMAScript, it was published in 2015, and is also known as ECMAScript 2015. This is one of the essential skills of programmer now a days. Either front end or Back-end both of the development work are depend on JavaScript and ES6 is …
What is CDN? A content delivery network or content distribution network (CDN) is a distributed system where users can store data and can access cached content. Usually, we store images, Style sheets, Javascript files, etc. The use of CDN is very efficient when we have to access some static files. It directly connects to our physical server and provides the …
Answers of the question “What is jQuery” is jQuery is a javascript library. jQuery is written in javascript. It is a library to ease the use of javascript. A rich library is developed to increase the usability of javascript in common and complex applications. Javascript provides much functionality to manipulate the HTML DOM tree in the run. Javascript is a …
React is a JavaScript library for building user interfaces. It is based on ES6 Script Extension. ES6 is ECMA Script 2015. React provides seamless manipulation and rendering of DOM objects. We also consider it as a Popular JavaScript framework based on Redux Architecture. React is developed and maintained by Facebook Inc. React was first created by Jordan Walke, a software engineer …
React is a JavaScript library for building user interfaces. It is based on ES6 Script Extension. ES6 is ECMA Script 2015. React provides seamless manipulation and rendering of DOM objects. We also consider it as a Popular JavaScript framework based on Redux Architecture. React is developed and maintained by Facebook Inc. React was first created by Jordan Walke, a software …
Email ID is a very important part of a user account. When an application invites the user to create accounts or allow users to subscribe to a newsletter, they ask for an email ID. Email ID is the initial medium of formal communication, so this is mandatory that the email is received should be in a valid format. Here we …
Angular is a TypeScript-based open-source web application framework Developed and Designed by Google. Angular is the majority used for One Page application and Material Design Concepts for Nowadays. It allows us to manipulate the HTML document and bind data with DOM seamlessly. Angular is an Integral Part of the web at the age of today. It is widely used by …
What is noConflict() method in jQuery? This is very important to differentiate scripts when we are using many JavaScript framework in our project.As we know jQuery uses dollar symbol ($) as shortcut. There are many other popular frameworks are there as Angular JS,Knockout JS,Kendo JS,Backbone JS,Ember ,Vue etc. Suppose i one of these frameworks is using the $ symbol as …
jQuery is a rich library and a very lightweight framework to provide javascript enhanced and modified functionality to our web page. jQuery is a javascript library and written in core javascript concepts. jQuery functionality is basically an easier version of javascript and a simple way to manipulate the DOM in the same way as Java Script does. This is so …
Jquery events are attached with some function and function called when event triggers. On a web page actions taken by visitors are events. They can be responded accordingly as click,change,blur,focus,keypress etc. Some common events as categorised as : Mouse Events : click,dblclick,hover Keyboard Events : keypress,keydown,keyup Form Events : change,select,focus,blur Window : load,scroll,resize Most Common events and their explanation in …
What is AJAX? Full form of AJAX is Asynchronous JavaScript And XML. AJAX facilitate web pages to be updated asynchronously by exchanging data with a web server in the background. It can update the webpage without reloading the whole page. What are the main components that are used by AJAX? AJAX components are : 1-A browser built-in XMLHttpRequest object 2-JavaScript …
What is jQuery? jQuery is a Javascript library that uses the usage of Javascript very easily. We can handle events, manage CSS properties, DOM element, animation and many more utilities using jQuery library. It is an opensource. It is used by Microsoft, Google, IBM and almost the big players in software industries. What are selectors? jQuery selectors are the tool …
What is JSON? JSON: JavaScript Object Notation is a tool to exchange data. It is defined as a javascript object. Using JSON we can store javascript Objects as text. When it will be required we can convert text into objects. Is it possible to have an array of JSON or JSON having the array as values? Yes, it is possible …
JavaScript is common and most powerful programming and scripting language being used today. JavaScript is a lightweight and client-side scripting language. Although after may server-side supporting frameworks have been developed and JavaScript is used today as a powerful server-side tool. Most of the framework based on Javascript provides smooth user experience and seamless content rendering. Due to huge populariy of …
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