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console.log(NaN === NaN); //-> false

Ashish Singh sirdarthvader

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sirdarthvader / System
Created November 13, 2022 12:06 — forked from vasanthk/System
System Design Cheatsheet

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

  1. Clarify and agree on the scope of the system
  • User cases (description of sequences of events that, taken together, lead to a system doing something useful)
    • Who is going to use it?
    • How are they going to use it?
sirdarthvader / app.png
Last active May 28, 2022 00:14
Github Project Readme Image
sirdarthvader / .zshrc
Created May 7, 2022 16:47
ZSHRC config [M-Air]
# If you come from bash you might have to change your $PATH.
# export PATH=$HOME/bin:/usr/local/bin:$PATH
# Path to your oh-my-zsh installation.
export ZSH=/Users/ashishsingh/.oh-my-zsh
# Set name of the theme to load. Optionally, if you set this to "random"
# it'll load a random theme each time that oh-my-zsh is loaded.
# See
sirdarthvader / viewPort.js
Created July 14, 2020 01:49
React Hook function for calculating viewport dimension.
import {useState, useEffect} from 'react';
const useViewport = () => {
const [width, setWidth] = useState(window.innerWidth);
const [height, setHeight] = useState(window.innerHeight);
useEffect(() => {
const handleWindowResize = () => {
sirdarthvader / filter-index.js
Created April 25, 2020 16:52
import React, { useMemo, useState, useEffect, useCallback } from 'react'
import { useDispatch, useSelector } from 'react-redux'
import PropTypes from 'prop-types'
import uuid from 'uuidv4'
import FocusTrap from 'react-focus-trap'
import DownArrow from 'components/svg/down-arrow'
import Checkbox from 'components/checkbox'
import { setFilter, clearFilter } from 'modules/filters/actions'
import filterSelector from 'modules/filters/selector'
import { getTreeData } from 'lib/utils/category'
sirdarthvader / tree.js
Last active April 25, 2020 16:53
A javascript function to get string of array and return a tree of data
* @param {Array} arr of strings provided for each Prodct listing / search page by aloglia
* @returns {Array} Modified array of nested objects in a tree structure for each category
export const getTreeData = arr => {
let mapper = {}
let root = {
children: []
sirdarthvader / remove.js
Created March 6, 2020 22:54
remove array elements using array.filet and array.reduce
const remove = (arr, func) =>
? arr.filter(func).reduce((acc, val) => {
arr.splice(arr.indexOf(val), 1);
return acc.concat(val);
}, [])
: [];
sirdarthvader / total_amount_calculator.js
Last active June 6, 2023 19:36
A minimal script to check overall spend till date on Zomato and Swiggy
The below snippets will help you find total money spent on Zomato and Swiggy so far by any individual.
For Zomato:
Step 1: Go to,
Step 2: Go to "Profiles", click on "Order History"
Step 3: Scroll to the very bottom and click on "Load More", until the option disappears.
Step 4: Do a right click anywhere on the screen and click on "Inspect", in the inspector,
go to console copy and paste the below snippet and press enter.
Make sure all the steps till step 3 is followed before doing the step 4.
sirdarthvader / package.json
Last active December 29, 2018 22:53
Webapck react setup without using any CLI
"name": "webpack-react-setup",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"start": "webpack-dev-server --mode development --open --hot",
"build": "webpack --mode production"
"repository": {
const exphbs = require('express-handlebars');
// Handlebars Middleware
defaultLayout: 'main',
app.set('view engine', 'handlebars');