In this video of the JavaScript Built-in Functions Mastery Series (Part 3), we’ll explore three powerful and commonly used JavaScript methods: indexOf() → Find the position of a substring or element in strings/arrays. join() → Combine array elements into a single string with custom separators. split() → Break strings into arrays using delimiters like spaces or commas. These methods are essential for string and array manipulation in real-world projects. By the end of this video, you’ll not only understand the syntax but also learn practical examples that can be applied in your web development journey. 👉 Watch Previous Parts: 🔹 JavaScript Built-in Functions Mastery Playlist https://www.youtube.com/playlist?list=PLMAzvLTH8bKHICpyNgGstmnxpXwWPYIPC Subscribe For More Videos related to Web development #JavaScript #LearnJavaScript #WebDevelopment #CodingForBeginners #indexOf #split #join