What is Data Structure and Algorithms (DSA for short)?

Data Structure is the way to programmatically store data so that it can be used efficiently. Algorithms on the other hand are a set of rules to be followed in calculations or other problem-solving operations, especially by a computer.

Data Structure and Algorithms go hand in hand as both are always together where one cannot exist without the other. Data Structure is like a car while Algorithm is the fuel or energy used to move the car. Without the car, the fuel might be useless, while a beautiful car without fuel is also useless. Every aspect of programming is an algorithm that is either design by yourself or someone else. As a software engineer or developer, you need both the knowledge of Data structure and Algorithms to be able to write better programs.

Both concepts seem intimidating especially for a self-taught developer who doesn't have a computer science background as you have to deal with how data are used which leads to efficient programs. Also, to be able to measure the performance of your program, knowledge of DSA is paramount as the concept of Big-0 notation allows us to measure the time and space performance of our Algorithms.

Interviews

I have been interviewed many times and questions related to DSA keep coming at least one in every three interviews I have attended. Small businesses looking to build their website might not even interview you or do any technical checking, they are only interested in what you have done in the past not necessarily how you do them. However, for a more organized team (Startups, mid-size and big-size companies), they do thorough technical interviews before hiring and questions related to DSA are a must.

If you are looking for cool tutorials, FreeCodeCamp has a lovely tutorial on JavaScrip Data Structure and Algorithm. Tutorial Point also has a cool one. If you love videos instead, you can check youtube for many tutorials.

Conclusion

If you want to write an efficient code and want to nail your next interview, Data Structure and Algorithms is a nice asset to add to your arsenal as you walk through your programming journey.

Thank you for your time. Ibrahim is a Full-stack Engineer writing from Kano, Nigeria. LinkedIn Github