tech - Prasblog

Interview question: Remove all duplicate items from an array, fully

2 minute read

Today I Learned… vim, docker, entr

1 minute read

2 tips to debug problems when upgrading from Rails 4 to Rails 5

4 minute read

Generate ECDSA signature in Ruby with a PEM file

1 minute read

Scala: Functions and Partial functions are not functions. They are instances of some anonymous clss!

2 minute read

Scala vs Ruby - Creating a while loop DSL

1 minute read

Learning Golang: Easy way to remember a slice’s capacity

2 minute read

Use this trick to test your rails patch quickly in production without yet publishing it

2 minute read

Save time with alias command (not what you think)

3 minute read

Rails Authentication From Scratch. Going Beyond Railscasts

9 minute read

Everything is a search problem. Master your search skills.

6 minute read

Setting up DocuWiki in an Ubuntu server

2 minute read

Hardening a new server

1 minute read

Learning Scala - Anki notes

12 minute read

Configuring Apache2 webserver - notes

2 minute read

Installing ruby using rvm offline

4 minute read

How to inline stylesheets and javascript in Rails view

less than 1 minute read

Database driven development

2 minute read

Setup https for Rails localhost development

1 minute read

Doing SQL Union in Rails 4 and Rails 5

2 minute read

Learning Elm

11 minute read

Ruby musings: Implementing Forwardable standard library

less than 1 minute read

Ruby musings: Converting a block to a proc/lambda

1 minute read

Notes: CSS Grid

10 minute read

Practicing SQL problems from Leetcode

3 minute read

FizzBuzz in SQL

less than 1 minute read

PostgreSQL notes: Miscellaneous

17 minute read

Course notes: Udemy google sheets

less than 1 minute read

PostgreSQL notes: Recursive queries vs standard ORM

5 minute read

PostgreSQL notes: Denormalization techniques

1 minute read

PostgreSQL notes: Writing lateral join for a Top-n usecase

2 minute read

PostgreSQL notes: Full text search

2 minute read

PostgreSQL notes: Window functions

11 minute read

PostgreSQL notes: Use lateral joins to run loops in a single query

4 minute read

PostgreSQL notes: A case for writing business logic in sql rather than code

5 minute read

Rake notes

2 minute read

Little Javascript Helper Functions

1 minute read

Programmatically Accessing Sprockets Assets

less than 1 minute read

ReactJS: Integrating Checkbox and Radio with React form

less than 1 minute read

ReactJS: Integrating react-select with redux

1 minute read

ReactJS: Using Formatters and Normalizers in ReduxForm

1 minute read

Using localstorage with Fetch API

1 minute read

Reviews of Tech Books I’ve Read

2 minute read

ROT13 Implementation in Javascript and Ruby

1 minute read

Javascript Class Methods, Binding and Event Handlers

1 minute read

ReactJS Notes

10 minute read

Javascript and iFrames

1 minute read

Advanced Regular Expressions

2 minute read

Demonstrating Basic Probability with Ruby

1 minute read

Understanding Turbolinks by Reading Tests

2 minute read

Understanding Javascript Promises

2 minute read

Rails API: Using Json Web Token for Authentication

2 minute read

CodeRead: metaclass gem: Accessing An Object’s Singleton Class

less than 1 minute read

Securing a blank server with Ansible and Let’s Encrypt

2 minute read

Learning and Using Ansible to Deploy Sites

1 minute read

MacOS Automation: Learning launchd and Notifications

2 minute read

(Video) VueJS Source Code Exploration

less than 1 minute read

VueJS: Implementing Computed properties

3 minute read

VueJS: Implementing Proxy behaviour of Data object

1 minute read

Ajax Type Ahead in PlainJS vs VueJS

1 minute read

Reading from a file and writing to another file in Ruby

less than 1 minute read

Setting up LoadBased AutoScaling Instance in Opsworks Using CloudFormation

1 minute read

AWS API Authentication With InstanceProfile in Ruby

2 minute read

Monit Chef Recipe To Monitor Rails App In AWS Opsworks

2 minute read

Directory Structure and File Requiring of A Ruby Commandline Program

2 minute read

AWS Opsworks Custom Layer: Chef Recipes to Deploy Custom Ruby Scripts

2 minute read

DynamoDB: Fetching Latest Items By Time: Part 2: Scan and Query APIs coupled with some Logic

2 minute read

AWS VPC Architecture for a highly-available, scalable Rails Application

3 minute read

AWS: Uploading SSL Certificate in ELB

1 minute read

AWS Cloudformation: Template Generation Strategy

2 minute read

Rails Logging: rsyslog, /var/log/, logrotate and a Chef Recipe to bind these together

2 minute read

DynamoDB: Fetching Latest Items By Time: Part 1: Choosing the right Primary Keys

3 minute read

Rails Tests: Rollback Things That Won’t Rollback With Teardown

2 minute read

Recurring Billing Design - notes

3 minute read

Deviseless, Headerless Authentication in Rails API

1 minute read

Ruby Is Forgiving Of Spaces After Dot

less than 1 minute read

Accessing Ruby Method Arguments And Values Dynamically

1 minute read

ES6’s Generator Function and Ruby’s Enumerator. What they are?

1 minute read

Exception Handlers only for Exceptional Cases

1 minute read

Know Thy Object’s Weight

1 minute read

Rails has_secure_token with token_updated_at

1 minute read

When to use Apply in a Javascript function

3 minute read

Caller-supplied Fallback Strategy

4 minute read

Bash cd wildcard alias function

less than 1 minute read

Rails Pitfall: Date, Time mismatch in Query

1 minute read

Understanding Ruby Blocks with the help of Javascript

5 minute read

Implementing Integer#to_s naively

1 minute read

Javascript Inheritance for Ruby Developers

7 minute read

A Primer about Javascript’s Prototype

5 minute read

The new Lonely Operator from Ruby 2.3

2 minute read

How to Debug with Git Bisect

10 minute read

Using define_method in a Class to Create Class Methods and Instance Methods

3 minute read

Implementing attr_accessor using define_method

less than 1 minute read

Uploading database.yml to Server using Capistrano

1 minute read