Index of my Stories



➤ Javascript (ES5/ ES6)

👏 Hoisting in JS

👏 reduce() in JS

➤ Typescript


👏 fetching response in React using fetch() or axios


React Native

➤ WWW / Web architecture

👏 Session vs Token Based Authentication

👏 Web Authentication: Cookies vs. Tokens

➤ must Read articles

👏 Centralizing API error handling in React apps

➤ graphQL

➤ Ruby / Ruby on Rails

➤ Dev/ops



➤ Mongodb


➤ Programming / Algorithms

➤ Puzzles

  • There are 2 floors namely “A” & “B”. There are 3 switches on floor A and 3 bulbs on floor B. How will you identify which switch belongs to which bulb provided the condition that you can visit to floor B ONLY once.
  • In extension to above problem, let’s say there are 5 switches with 5 bulbs.What minimum no. of steps is required to identify which bulb belongs to which switch.
  • How many Zeroes in factorial(100);
  • Total 100 people….70 like tea…80 like coffee….how many like both. it it possible that 70 who like tea also like coffee ?? Hint: venn diagram
  • A, B, C, D taking 4 different times….1,2,7,10 resp. to cross a bridge from “X” to “Y” with one torch. Only max 2 members can walk in together. calculate Max time in which they all can cross the bridge ?



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Anil Kumar

Anil Kumar

Experience with Front-end Technologies and MERN / MEAN Stack. Working on all Major UI Frameworks like React, Angular.