--- title: "Md Nehaluddin Haider (@nehalhaider) | Hashnode" description: "Software Developer@IBM. Read the latest articles by Md Nehaluddin Haider on Hashnode." url: "https://hashnode.com/@nehalhaider" --- @nehalhaider # Md Nehaluddin Haider @nehalhaider · Bengaluru, India · Joined November 2020 Software Developer@IBM ### [Master RxJS](https://nehal.hashnode.dev/master-rxjs?utm_source=hashnode&utm_medium=feed) ToDo 1 min read · [nehal.hashnode.dev](https://nehal.hashnode.dev/master-rxjs?utm_source=hashnode&utm_medium=feed) [Jan 2, 2023](https://hashnode.com/posts/master-rxjs/63b27d7b3ed8c881b9e47d6d) ### [DSA- Important Matrix Questions](https://nehal.hashnode.dev/dsa-important-matrix-questions?utm_source=hashnode&utm_medium=feed) Practice 1 min read · [nehal.hashnode.dev](https://nehal.hashnode.dev/dsa-important-matrix-questions?utm_source=hashnode&utm_medium=feed) [Jul 3, 2022](https://hashnode.com/posts/dsa-important-matrix-questions/62c145dfe4246414d3d3567a) ### [Kotlin- Properties, Getters, Setters](https://nehal.hashnode.dev/kotlin-properties-getters-setters?utm_source=hashnode&utm_medium=feed) Introduction Kotlin properties are variables that are declared inside the class but outside the method. It can be declared either as mutable using the var' keyword or read-only using the val keyword. Full syntax for declaring a property: var