Interview Questions

AJAX Interview Questions Android Interview Questions Angular 2 Interview Questions AngularJs Interview Questions Apache Presto Interview Questions Apache Tapestry Interview Questions Arduino Interview Questions ASP.NET MVC Interview Questions Aurelia Interview Questions AWS Interview Questions Blockchain Interview Questions Bootstrap Interview Questions C Interview Questions C Programming Coding Interview Questions C# Interview Questions C++ Interview Questions Cakephp Interview Questions Cassandra Interview Questions CherryPy Interview Questions Clojure Interview Questions Cobol Interview Questions CodeIgniter interview Questions CoffeeScript Interview Questions Cordova Interview Questions CouchDB interview questions CSS Buttons Interview Questions CSS Interview Questions D Programming Language Interview Questions Dart Programming Language Interview Questions Data structure & Algorithm Interview Questions DB2 Interview Questions DBMS Interview Questions Django Interview Questions Docker Interview Questions DOJO Interview Questions Drupal Interview Questions Electron Interview Questions Elixir Interview Questions Erlang Interview Questions ES6 Interview Questions and Answers Euphoria Interview Questions ExpressJS Interview Questions Ext Js Interview Questions F# Interview Questions Firebase Interview Questions Flask Interview Questions Flex Interview Questions Fortran Interview Questions Foundation Interview Questions Framework7 Interview Questions FuelPHP Framework Interview Questions Go Programming Language Interview Questions Google Maps Interview Questions Groovy interview Questions GWT Interview Questions Hadoop Interview Questions Haskell Interview Questions Highcharts Interview Questions HTML Interview Questions HTTP Interview Questions Ionic Interview Questions iOS Interview Questions IoT Interview Questions Java BeanUtils Interview Questions Java Collections Interview Questions Java Interview Questions Java JDBC Interview Questions Java Multithreading Interview Questions Java OOPS Interview Questions Java Programming Coding Interview Questions Java Swing Interview Questions JavaFX Interview Questions JavaScript Interview Questions JCL (Job Control Language) Interview Questions Joomla Interview Questions jQuery Interview Questions js Interview Questions JSF Interview Questions JSP Interview Questions KnockoutJS Interview Questions Koa Interview Questions Laravel Interview Questions Less Interview Questions LISP Interview Questions Magento Interview Questions MariaDB Interview Questions Material Design Lite Interview Questions Materialize CSS Framework Interview Questions MathML Interview Questions MATLAB Interview Questions Meteor Interview Questions MongoDB interview Questions Moo Tools Interview Questions MySQL Interview Questions NodeJS Interview Questions OpenStack Interview Questions Oracle DBA Interview Questions Pascal Interview Questions Perl interview questions Phalcon Framework Interview Questions PhantomJS Interview Questions PhoneGap Interview Questions Php Interview Questions PL/SQL Interview Questions PostgreSQL Interview Questions PouchDB Interview Questions Prototype Interview Questions Pure CSS Interview Questions Python Interview Questions R programming Language Interview Questions React Native Interview Questions ReactJS Interview Questions RequireJs Interview Questions RESTful Web Services Interview Questions RPA Interview Questions Ruby Interview Questions Ruby on Rails Interview Questions SAS Interview Questions SASS Interview Questions Scala Interview Questions Sencha Touch Interview Questions SEO Interview Questions Servlet Interview Questions SQL Interview Questions SQL Server Interview Questions SQLite Interview Questions Struts Interview Questions SVG Interview Questions Swift Interview Questions Symfony PHP Framework Interview Questions T-SQL(Transact-SQL) Interview Questions TurboGears Framework Interview Questions TypeScript Interview Questions UiPath Interview Questions VB Script Interview Questions VBA Interview Questions WCF Interview Questions Web icon Interview Questions Web Service Interview Questions Web2py Framework Interview Questions WebGL Interview Questions Website Development Interview Questions WordPress Interview Questions Xamarin Interview Questions XHTML Interview Questions XML Interview Questions XSL Interview Questions Yii PHP Framework Interview Questions Zend Framework Interview Questions

Top 15 PouchDB Interview Questions for 2022

1) What is PouchDB?

PouchDB is an in-browser database that allows applications to save data. It is an open source database. It runs in Node.js.

2) In which language PouchDB was written?

PouchDB was written in JavaScript language.

3) What are the features of PouchDB?

There are following features of PouchDB:
  • It is cross browser.
  • It is light weight.
  • It is easy to learn.
  • It is open source etc.

4) How PouchDB does work?

PouchDB does work in two ways:
  • Offline: When the application is offline the data is stored locally by using WebSQL and indexedDB.
  • Online: When the application is online then, the data is synchronized with CouchDB and compatible server.

5) What are the browsers supported by PouchDB?

There are following browsers supported by PochDB:
Firefox 29+ (Including Firefox OS and Firefox for Android)
Chrome 30+
Safari 5+
Internet Explorer 10+
Opera 21+
Android 4.0+
iOS 7.1+
Windows Phone 8+

6) Which file is used while installing PouchDB?

PouchDB used .JS file while installing.
script src = "PouchDB-5.3.0.min.js"></script>

7) How can we create a database in PouchDB?

We can create a database in PouchDB by using PouchDB constructor. Syntax:
new PouchDB(Database_name)

8) Which method is used while using PouchDB package?

PouchDB used require() method. Example
//Requiring the package  
var PouchDB = require('PouchDB');

9) How can we create database in PouchDB?

We can create database in PouchDB by using following code:
//Requiring the package  
var PouchDB = require('PouchDB');  
//Creating the database object  
var db = new PouchDB('my_database');  
console.log ("Database created Successfully.");

10) How can we get basic information about the database?

We can get basic information about the database by using info() method.

11) Which method is used to create document in PouchDB?

In PouchDB, db.put() method is used to create document. Syntax:
db.put(document, callback)

12) How can we create an array (batch) of documents in PouchDB?

We can create an array(batch) of documents in PouchDB by using db.bulkDocks() method. Example:
//Requiring the package  
var PouchDB = require('PouchDB');   
//Creating the database object  
var db = new PouchDB('my_database');  
//Preparing the documents array  
doc1 = {_id: '001', name: 'Ram', age: 23, Designation: 'Programmer'}  
doc2 = {_id: '002', name: 'Robert', age: 24, Designation: 'Programmer'}  
doc3 = {_id: '003', name: 'Rahim', age: 25, Designation: 'Programmer'}  
docs = [doc1, doc2, doc3]   
//Inserting Documents  
db.bulkDocs(docs, function(err, response) {  
   if (err) {  
      return console.log(err);  
   } else {  
      console.log("Documents created Successfully");  
   }  
});

13) What is the use of Replication?

Replication is used to make a copy of the database.

14) How can we replicate localDB to CouchDB?

We can replicate localDB to CouchDB by using following an example:
 //Requiring the package   
var PouchDB = require('PouchDB');   
var localdb = 'sample_database';  
//Creating remote database object   
var remotedb = 'http://localhost:5984/sample_database';    
//Replicating a local database to Remote   
PouchDB.replicate(localDB, remoteDB);   
console.log ("Database replicated successfully");

15) What are the PouchDB document methods?

PouchDB document methods are:
db.put()
db.get()
db.remove()



ADVERTISEMENT
ADVERTISEMENT