anushshukla

function countFamilyLoginsPairs(logins) {
    // Write your code here
    let familyLoginPairsCount = 0;
    const cachedResults = {};
    logins.map((login, currentLoginIndex) => {
        const possibleLoginPairs = ['', ''];
        cachedResults[login] = 0;
        if (cachedResults[login]) {
            cachedResults[login] += 1;
            familyLoginPairsCount++;

anushshukla

declare -a processNames=(
    "test" 
    "test2"
    "test3"
    "test4"
)

## now loop through the above array
for processName in "${processNames[@]}"
do

anushshukla

What is a process manager? 💻

Basically, a process itself to manage the application processes like cluster, restart / reload the process without downtime, smart restart etc.

Why do we need process managers?

A process managers helps us to scale the application and make the application available which prevents downtime of the application.

What are important features of a process managers?

anushshukla

Helpful plugins in general

• https://marketplace.visualstudio.com/items?itemName=eamodio.gitlens
• https://marketplace.visualstudio.com/items?itemName=donjayamanne.githistory
• https://marketplace.visualstudio.com/items?itemName=waderyan.gitblame
• https://marketplace.visualstudio.com/items?itemName=yzhang.markdown-all-in-one
• https://marketplace.visualstudio.com/items?itemName=mikestead.dotenv
• https://marketplace.visualstudio.com/items?itemName=TabNine.tabnine-vscode

FAQ

anushshukla

[core]
	autocrlf = input
	whitespace = cr-at-eol
	excludesfile = ~/.gitignore
	fileMode = false
	editor = code
[user]
	name = <Name Here>
	email = <Email Here>
[color]

anushshukla

Q: What is a race condition?

A: This is the condition which arises when there is race between multiple requests from client to server try to modify or fetch the same resource in the same time of execution

Q: When does race condition arise?

A: When a system is multi-threaded or/and multi-process to handle concurrency or/and parallelism for performance optimisation.

Q: How can race conditions be avoided?

anushshukla

• cached session management
• backward compatibility with legacy system
• inter microservice communication authorisation
• safe & secured project (audited project dependencies and scrutinised API)
• maintainable & scalable project (modular codebase and organised DB)
• config driven authentication (protocols, token structure and design patterns)

anushshukla

#!/bin/bash

AWS_S3_LS='s3://<BUCKET-NAME>/<PATH-TO-THE-LOGS>'
SYS_DAY=$(date '+%d')
SYS_MONTH=$(date '+%m')
SYS_YEAR=$(date '+%Y')
DEFAULT_TIME_AFTER="00:00:00"
DEFAULT_TIME_BEFORE="23:59:59"
SORT_DATE=true
LOG_TYPE='out'

anushshukla

import sys

def getCleanEntry(line):
    entry = line.strip('\n').split(',')
    return entry

def getPurchaseDetails(entry):
    storeName = entry[1].strip()
    customerName = entry[0].strip()
    amount = int(entry[4].strip().replace("Rs ", ""))

anushshukla

Table Schema -> User Preferences

• UserPreferenceId
• UserId
• UserPreferredCurrency
• UserPreferredLanguage
• UserPreferredTimezone
• UserPreferredDateFormat
• UserPreferredTimeFormat
• UserPreferredNumberFormat