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

Ashish Singh sirdarthvader

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console.log(NaN === NaN); //-> false
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@sirdarthvader
sirdarthvader / System Design.md
Created November 13, 2022 12:06 — forked from vasanthk/System Design.md
System Design Cheatsheet
View System Design.md

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
sirdarthvader / app.png
Last active May 28, 2022 00:14
Github Project Readme Image
View app.png
https://user-images.githubusercontent.com/28031165/170801827-6eb07b5e-87ad-445f-a72e-e5ef52560427.png
@sirdarthvader
sirdarthvader / .zshrc
Created May 7, 2022 16:47
ZSHRC config [M-Air]
View .zshrc
# 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 https://github.com/robbyrussell/oh-my-zsh/wiki/Themes
ZSH_THEME="robbyrussell"
@sirdarthvader
sirdarthvader / viewPort.js
Created July 14, 2020 01:49
React Hook function for calculating viewport dimension.
View viewPort.js
import {useState, useEffect} from 'react';
const useViewport = () => {
const [width, setWidth] = useState(window.innerWidth);
const [height, setHeight] = useState(window.innerHeight);
useEffect(() => {
const handleWindowResize = () => {
setWidth(window.innerWidth);
setHeight(window.innerHeight);
@sirdarthvader
sirdarthvader / filter-index.js
Created April 25, 2020 16:52
filter-bar-index.js
View filter-index.js
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
sirdarthvader / tree.js
Last active April 25, 2020 16:53
A javascript function to get string of array and return a tree of data
View tree.js
/**
*
* @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
sirdarthvader / remove.js
Created March 6, 2020 22:54
remove array elements using array.filet and array.reduce
View remove.js
const remove = (arr, func) =>
Array.isArray(arr)
? arr.filter(func).reduce((acc, val) => {
arr.splice(arr.indexOf(val), 1);
return acc.concat(val);
}, [])
: [];
//EXAMPLES
@sirdarthvader
sirdarthvader / total_amount_calculator.js
Last active September 6, 2022 13:21
A minimal script to check overall spend till date on Zomato and Swiggy
View total_amount_calculator.js
/**
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 Zomato.com,
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.
*****IMPORTANT****
Make sure all the steps till step 3 is followed before doing the step 4.
@sirdarthvader
sirdarthvader / package.json
Last active December 29, 2018 22:53
Webapck react setup without using any CLI
View package.json
{
"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": {
View handlebars server.js
const exphbs = require('express-handlebars');
// Handlebars Middleware
app.engine(
'handlebars',
exphbs({
defaultLayout: 'main',
})
);
app.set('view engine', 'handlebars');