PPprasanna pinnaminlakshmiprasanna.hashnode.dev·Jan 14, 2025 · 1 min readimp javascript qnspromises order console.log(1) //This is synchronous. It runs immediately. const promise = new Promise((resolve) => { console.log(2) //This is synchronous. It runs immediately. resolve() //resolve() is called, which schedules the .then() callback...00
PPprasanna pinnaminlakshmiprasanna.hashnode.dev·Nov 2, 2024 · 11 min readnetworking -- graphQL, GRPCwhat is graphQL GRAPH QUERY LANGUAGE if we want a list of all continents, all countries, all languages using restAPI we will make 3 API calls and get the data, and convert all those data to required format in the client this kind of heavylifting o...00
PPprasanna pinnaminlakshmiprasanna.hashnode.dev·Oct 25, 2024 · 10 min readsystem design --- RESTAPIRepresentational State Transfer —- REST Architecture 1] previously in one single code base, one single technology — frontend,backend, storage related things are developed —- this is one-tier architecture pblm here will happen when it comes to scalin...00
PPprasanna pinnaminlakshmiprasanna.hashnode.dev·Aug 12, 2024 · 8 min readsystem design - networkinghow the web works when we hit a URL say 'https://www.flipkart.com/' , check in the network tab of dev tools, in the response subtab for this request we get a HTML page in HTML file we can see some css,js files also so when we type a URL like flipka...00
PPprasanna pinnaminlakshmiprasanna.hashnode.dev·Jul 8, 2024 · 44 min readjavascript basicswhat is javascript? a programming language commonly used in web development creates interactive webpages [when used on client side] it can manipulate DOM of a webpage and also the styles difference b/w java and js js: Loosely typed (variables d...00