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+++
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title = "Things I Learnt The Hard Way - Spec First, Then Code"
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date = 2019-06-18
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[taxonomies]
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tags = ["en-au", "books", "things i learnt", "specs", "code"]
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+++
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"Without requirements or design, programming is the art of adding bugs to an
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empty text file." -- Louis Srygley
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<!-- more -->
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If you don't know what you're trying to solve, you don't know what to code.
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A lot of times we have this feeling of "let me jump straight to the code". But
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without understanding what problem you're trying to solve, you'd end up
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writing a bunch of things that doesn't solve anything -- or, at least,
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anything that _should_ be solved.
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So here is the point: Try to get a small spec on whatever you want to solve.
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But be aware that even that spec may have to be [thrown
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out](/books/things-i-learnt/throw-away), as the understanding of the problem
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tend to grow as long as the project continue.
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Yes, it's paradoxical: You need a spec to know what to code to avoid coding
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the wrong solution, but the spec may be wrong, so you _end up_ solving the
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wrong solution anyway. So what's the point? The point is, the spec reflects
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the understanding of a problem _at a certain point_: All you (and your team)
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know is _there_.
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The times I stood longer looking at my own code wondering what to do next were
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when we didn't have the next step defined: It was missing some point of the
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solution or we didn't have the communication structures defined or something
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of sorts. Usually, when that happened, I stumbled upon Twitter or Mastodon
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instead of trying to solve the problem. So when you see yourself doing this
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kind of stuff -- "I don't know what to do next, and I'm not sure if I'm done
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with the current problem" -- then maybe it's time to stop and talk to other
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people in the project to figure that out.
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