mongodb Mongo DB NoSQL 

How to update nested sub-documents in Mongo DB

Updating sub-documents in NoSQL Mongo DB is bit trickey, so here we have come up with an solution how to update level 1 and level 2 nested subdocuments. Lets Consider below document as example: For the above document level, 1 update operation looks like below. Here we are updating forecast’s first id name from “Forecast 1” to “New Forecast 1”  for this one updateOne finds works fine. as written in below code For the above document level 2 update operation looks like below. Here we are updating forecasts first id…

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Javascript jQuery 

Javascript errors you should be aware of

Javascript is one of the most popular programming languages in recent days, so we tried to find some most common errors in javascript. After working on many projects, we found some common javascript error based on errors that occurred in different browsers. There are many Javascript errors that occur when you run your code, Below are some error which is browser-centric and some are common in all browsers.  Google Chrome:  Uncaught TypeError: Cannot read property.  It occurs when you read a property or call a method on an undefined object.…

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SSL Certificate Windows Server 

How to add “Letsencrypt” free SSL in IIS server updated in Aug 2020

Letsencrypt is a free SSL Service provided by a group of an internet organization. It is a free, automated, and open certificate authority (CA), run for the public’s benefit.  Letsencrypt is a certificate authority which provides free SSL certificates with 90-days lifetime. The idea behind this innovation is to improve and simplify the process of SSL installation and make the Internet a safer place by providing certificates at no cost. While there are two main functions of SSL – encryption, and validation, Let’s encrypt is aimed at encryption only. Steps…

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News Tech News 

List of most popular online compilers updated in 2020

List of online compilers OnlineGDB.com is an online compiler and debugger tool for C/C++ languages. It is the world’s first online IDE which gives debugging facility with embedded gdb debugger. This is a very handy web app for coders who loves coding in online IDE but faces unexpected crashes and tricky bugs in their code. OnlineGDB provides debugging power to such users to help them out.  CodeChef.com is a not-for-profit educational initiative by Directi, an Indian software company. It is a global programming community that fosters learning and friendly competition, built on…

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