JavaScript for...of vs for...in Explained with Real Example | Find Duplicate Characters

In this video, we will learn the difference between `for...of` and `for...in` loops in JavaScript with a practical coding example. ✅ Topics Covered: Difference between `for...of` and `for...in` How to count duplicate characters in a string Using objects in JavaScript Finding repeated characters dynamically Beginner-friendly JavaScript interview coding question 💡 Example Used: Input: "Playwright Testing" Output: ["i", "g", "t"] This example is very useful for JavaScript interviews, automation testing, and coding practice. #JavaScript #CodingInterview #Playwright #AutomationTesting #Programming #SoftwareTesting #QAAutomation #LearnJavaScript #CodingPractice