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45 lines
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45 lines
2.3 KiB
Plaintext
---
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title: '❌ Mistakes I made as a junior developer'
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description: 'Here are mistakes I made when I started, to prevent you from making the same mistakes.'
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isPublished: false
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publishedOn: '2021-12-06T22:06:33.818Z'
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---
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Hello! 👋
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I will explain some of my mistakes I made as a junior developer, so you can avoid doing them.
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## 1. Skipped learning how to do automated tests
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Probably one of the most common error junior developers do.
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When you begin in programming, you learn a programming language, so you learn variables, conditions, loops, functions, etc.
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With these concepts, you might start a new project, thinking that you will be able to do everything.
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But as the project grows, you will end up using functions at multiple places in code, so if you change the behavior of a function, it will affect the whole project.
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And because the code grows, you might do some refactoring, but because we are humans, we make mistakes, you could accidentally break the whole project even with a tiny change you thought was safe to do.
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If you would have automated tests, you would have a way to know if you made a mistake even before deploying to production.
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Depending on the programming language you are using, and what is the project you are working on, writing tests will be different.
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Be aware that there are 3 main testing strategy:
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- [Unit testing](https://en.wikipedia.org/wiki/Unit_testing)
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- [Integration testing](https://en.wikipedia.org/wiki/Integration_testing)
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- [End-to-end testing](https://en.wikipedia.org/wiki/End-to-end_testing)
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After you learnt the basic of programming, learn how to write automated tests, it will save you a lot of time and debugging.
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## 2. Thinking too big, with too much abstraction
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Abstraction is great, but it can be harder to understand what is going on if actally don't need this abstraction.
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Find the right balance, between abstraction and implementation, start simple, and then gradually improve and add more features.
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When you start a new project, you should focus on the core of the project, not on the details, to release as soon as possible, a working usable version of your project also called a [**Minimum Viable Product** (MVP)](https://en.wikipedia.org/wiki/Minimum_viable_product).
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## 3. Focusing on the thing that don't add value to a project
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