NIKE Software Engineer -2 interview questions

it was a easy interview : 1 ) technical interview : -> 2 coding questions , a) one was from javascript - reverse letters in array of strings without affecting space , without using any inbuilt method b) qnother one from react js - react code to build a timer and some theory questions on javscript and react js they focused more on react + JavaScript 2) second round was kind of system design ( asked me to build UI how excel sheet works , how to copy columns and rows), also they asked me a few Node.js and AWS questions 3) director round (casual discussion)