@rajanlagah

Rajan Lagah

@rajanlagahJoined August 2023

👨‍💻 Code Crafts and Tech Tales: My Journey Unfolded on Hashnode.

About

👨‍💻🖥️ Crafting code wizardry for 5 years and counting. Experienced programmer determined to transform code into innovation.

Available for

Nothing here yet.

Rajan Lagah's blogs

RAJANrajanlagah.hashnode.dev7 posts

Javascript Array.filter

We will discuss Polyfill for Array.filter(). About The Javascript filter takes a function as a parameter and returns a new array with items that satisfy the given function .i.e return true when the item is passed to a given function. const arr = [0,2...

Sep 3, 2023 · 1 min readrajanlagah.hashnode.dev

Javascript Array.flat

We will discuss Polyfill for Array.flat(). About Array.flat is a function that will take depth as a parameter and return new array of concatenated arrays till depth. const array = [1,3,4,5,[2,3,4,[5,67]], [1,2,3]] console.log(array.flat()) // [ 1, 3,...

Sep 3, 2023 · 2 min readrajanlagah.hashnode.dev

Youtube system design

Requirements Design a system where the user can upload video can watch videos will see a live feed on the landing page Load calculations Assumptions Total number of users watching videos per day 200M Total number of users uploading videos per ...

Aug 28, 2023 · 4 min readrajanlagah.hashnode.dev

Best Time to Buy and Sell Stock #121

Check the problem statement on leetcode Intuition You can not sell first and buy later. So it will remove all the cases where you need to check the difference from previous values You only have to make 1 trade You only need to find the difference ...

Aug 18, 2023 · 2 min readrajanlagah.hashnode.dev

"Proxy" a way to optimize your code

Using proxy you can intercept the fundamental functions for objects. Ever wanted to add an event listener or callback whenever a specific function or value from an object is called? Maybe you are doing recursion and want to check how many times the ...

Aug 17, 2023 · 2 min readrajanlagah.hashnode.dev

Rajan Lagah

About

Available for

Rajan Lagah's blogs

Javascript Array.filter

Javascript Array.flat

Youtube system design

Best Time to Buy and Sell Stock #121

"Proxy" a way to optimize your code

Search Hashnode

Rajan Lagah

About

Available for

Rajan Lagah's blogs

Javascript Array.filter

Javascript Array.flat

Youtube system design

Best Time to Buy and Sell Stock #121

"Proxy" a way to optimize your code