DEV Community: Rohan Prasad

My Freelancing Experience

Rohan Prasad — Tue, 22 Dec 2020 08:02:10 +0000

Hey Folks ,
Before joining Microsoft I tried Freelancing and I have shared my experiences here.
If anyone looking to start freelancing you can watch this video.
Video :

Frontend Development Guide 2021

Rohan Prasad — Mon, 21 Dec 2020 14:02:46 +0000

Video Link : https://youtu.be/a1AoETuXtys

In this video, we will talk about technologies you can master to be a good frontend developer.
We will talk about :
HTML
CSS
JS
TS
Bootstrap
React
Angular
Vue
NextJs
Gatsby
GIT
Figma
AdobeXD

Building a personal website & blog with React, Gatsby, and styled-components

Rohan Prasad — Sun, 20 Dec 2020 13:50:18 +0000

I would have started this a long ago but I always Procrastinated things saying that "I make a great blog with great features and styling". But the thing is a blog with great styling but no content is of no use. So, I started making this blog with basic Figma designs I made and thought let's start and at least make something where people can read some content.

I have used React, gatsby, styled-components, graphQL & MDX for the blog which is super fast.
I have deployed it to Netlify.

I am linking the GitHub repo which is public you can fork it and create your own personal site.

Github Repo: https://github.com/rohanprasadofficial/react-gatsby-portfolio

How it looks: https://www.rohanprasad.dev/

Do let me know in the comment sections, how does it look.
I have kept it minimal because I believe "less is more".

Do read the GitHub readme to understand how to use and build it.

Please support by giving it a star, I have invested a lot of time thinking about the colors, design, and coding.

gatsby #styled-components #react #mdx #personal-site #blog-site #rohanprasad

Git and GitHub Complete Guide

Rohan Prasad — Mon, 20 Jul 2020 13:25:37 +0000

Git is essential for anyone in tech whether you are using Android, Web Dev, or ML, etc.
It is required for everyone and GitHub is considered as the next resume in tech.
I have teaching GIT and GitHub completely from scratch to advanced that might help people to understand it better.

Do subscribe and keep following for more quality content.

https://www.youtube.com/playlist?list=PLgQxDWfScmGE14fHsRRe2QVuTkFqwu3B8

TypeScript Complete Guide

Rohan Prasad — Thu, 25 Jun 2020 02:36:56 +0000

TypeScript is a superset of JavaScript that compiles to plain JavaScript. TypeScript is pure object oriented with classes, interfaces, and module-statements just like in Java or C#.

Unlike JavaScript, which is a loosely-typed language,TypeScript supports static typing.

It is used by very tech giants to built robust apps.
I have using it along for my Freelancing clients and will share my knowledge at my youtube playlist at:

https://www.youtube.com/playlist?list=PLgQxDWfScmGFgpMzbo34DlF5V1Q9a4QRj

You can consider subscribing i will keep posting great tech and just boring old school tech games.

Competitive Programming , Interviews 101 , Cracking Microsoft Interview

Rohan Prasad — Thu, 25 Jun 2020 02:17:50 +0000

The first thing while preparing for an interview is to prepare for the coding rounds.
Various coding round are conducted and they can be difficult if cannot choose good language and perfect place to start on.
I used c++ and various resources to crack my interview at Microsoft.
I have created a playlist for learning C++ STL for learning it in simple and easy way and guides using it.
Find it here :

https://www.youtube.com/playlist?list=PLgQxDWfScmGEjxyaPVxo51d4MLegOunL9

You can subscribe for more update i am preparing for more course that might help in interviews and coding stuffs.
In the coming days i do talk about to the effectively tackle questions as well.

How to find Segmentation Error in C & C++ ? (Using GDB)

Rohan Prasad — Wed, 20 May 2020 11:48:10 +0000

What is Segmentation Error?
– It is the runtime error caused because of the memory access violation.
For Eg :-Stackoverflow, read violation etc..
We often face this problem when working out with pointers in c++/c.
In this example, we will see how to find the segmentation error in the program. We will find which lines cause the segmentation fault error.
Note:- I have used Linux distro – Ubuntu for this demonstration.
So, Consider the following snippet of C++ Code.

// Segmentation Error Demonstration
// Author - Rohan Prasad
# include
using namespace std;

int main()
{
int* p = NULL;

// This lines cause the segmentation  
// error because of accessing the  
// unknown memory location. 
*p = 1; 

cout << *p; 
return 0;

}

How to find that error using gdb?
Let’s say your file name is saved as Program1.cpp. Head our to your terminal (Be in the directory in which this Program1.cpp is available)

Step 1: Compile it.
$ gcc -g Program1.cpp (in my case).
Step 2: Run it.
$ ./a.out (it is Object File)
If it shows Segmentation fault (core dumped) then follow following steps.
Step 3:Debug it
$ gdb ./a.out core
Your output will look like something this:
————————————————————————————

GNU gdb (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
.
Find the GDB manual and other documentation resources online at:
.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ./a.out...done.
/home/logarithm/Desktop/Test Case/Miccl/core: No such file or directory.
(gdb)

————————————————————————————
Then just type r and press the enter key .
The output will be something like this showing the erroneous statement.
———————————————————————————–

(gdb) r
Starting program: /home/logarithm/Desktop/Test Case/Miccl/a.out

Program received signal SIGSEGV, Segmentation fault.
0x00005555555547de in main () at Sege.cpp:8
8 *p=1;
(gdb)

————————————————————————————
Then just type r and press the enter key.
The output will be something like this showing the erroneous statement.
———————————————————————————–

(gdb) r
Starting program: /home/logarithm/Desktop/Test Case/Miccl/a.out

Program received signal SIGSEGV, Segmentation fault.
0x00005555555547de in main () at Sege.cpp:8
8 *p=1;
(gdb)