6 JavaScript Array Methods You Must Know 🚀 | indexOf, concat, join, reverse & sort

Learn 6 useful JavaScript Array methods with simple examples: indexOf(), lastIndexOf(), concat(), join(), reverse(), and sort(). Perfect for beginners and JavaScript interview preparation. 💻🔥 🧠 Practice Challenge Use this array: let subjects = ["React", "HTML", "JavaScript", "CSS"]; Complete these tasks: Find the index of "JavaScript" using indexOf(). Create another array: let backend = ["Python", "Django"]; Combine both arrays using concat(). Convert the subjects array into a string using join(). Reverse the subjects array using reverse(). Sort the subjects array alphabetically using sort(). 💬 Complete the challenge and comment your answers below! If you found this video helpful, like, share, and subscribe to CodeWithKhanDevloper for more coding tutorials. 🚀