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RK

Rajan Kumar

Founder at HackersFriend July 10, 2022, 11:08 p.m. 56 views

How to present your software engineering projects

A lot of software engineers struggle at making an impactful pitch of what they have built and not do a …


RK

Rajan Kumar

Founder at HackersFriend July 9, 2022, 9:17 a.m. 69 views

Most common mistakes you should avoid in interviews

After interviewing 50+ candidates for senior and junior software engineer roles for my team, here are the most common patterns …


RK

Rajan Kumar

Founder at HackersFriend May 9, 2022, 9:25 p.m. 185 views

Leaky Bucket algorithm for Rate limiting system design

Designing a rate limiting system for any API can be done in many ways. In this article I'll talk about …


RK

Rajan Kumar

Founder at HackersFriend Updated April 24, 2022, 6:09 p.m. 343 views

How to format date output in Linux bash script

To get current timestamp in bash you can use:

timestamp=$(date +%s)

This will give you seconds since UNIX epoch …



RK

Rajan Kumar

Founder at HackersFriend July 18, 2021, 12:59 p.m. 923 views

What is HTTP header X-Forwarded-Host ?

The HTTP X-Forwarded-Host header is the part of HTTP header that contains information for identifying the original host requested by the …


VK

Vikash Kale

Programmer and Software Engineer at Tata Consultancy Services Jan. 8, 2021, 7:55 p.m. 1988 views

Program Code - calculate the absolute difference between the sums of its diagonals.

Given a square matrix, calculate the absolute difference between the sums of its diagonals.

For example, the square matrix  is shown …


RK

Rajan Kumar

Founder at HackersFriend Dec. 19, 2020, 3:13 p.m. 4993 views

How to install Python libraries without using the pip command ?

To install any python library without pip command, we can download the package from pypi.org in and run it's …


HS

Harsh Shukla

Intern at Microsoft Sept. 3, 2020, 1:49 p.m. 812 views

Reverse words in a given string

Let's take a string s,  we want to reverse its words. For example - 

Sample input 1

Hello HackersFriend …

VS

Vishal Saxena

SDE 1 at Amazon Aug. 20, 2020, 11:23 a.m. 2578 views

How to take screenshot of a div using JavaScript ?

Using html2canvas library you can take screenshot of any html element from page. You can learn more about it from …


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