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<a href="https:&#x2F;&#x2F;blog.juliobiason.me"><h1>Julio Biason .Me 4.3</h1></a>
<p class="lead">Old school dev living in a 2.0 dev world</p>
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<li class="sidebar-nav-item"><a href="&#x2F;">English</a></li>
<li class="sidebar-nav-item"><a href="&#x2F;pt">Português</a></li>
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<h1 class="post-title">Things I Learnt The Hard Way - Shortcuts Are nice, But Only In The Short Run</h1>
<span class="post-date">
2019-07-08
<a href="https://blog.juliobiason.me/tags/books/">#books</a>
<a href="https://blog.juliobiason.me/tags/things-i-learnt/">#things i learnt</a>
<a href="https://blog.juliobiason.me/tags/frameworks/">#frameworks</a>
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<p>A lot of languages/libraries/frameworks add a way to make things shorter,
reducing the number of things you need to type.</p>
<p>But, later, that will bite you and you'll have to remove the shortcut and do
the long things.</p>
<span id="continue-reading"></span>
<p>Frameworks and libraries -- and even some languages -- come with &quot;helpers&quot; for
most boilerplate things. Instead of typing the same 5 lines of code over and
over, you can use a simple function; instead of writing the function with 5
parameters, you can skip a bit and use another one with just one. Or you could
just add a simple macro expansion on top of your struct/class and it would
complete all the missing points.</p>
<p>Don't get me wrong, they are great.</p>
<p>But you must understand what the macro/function is hiding from you. 'Cause
sooner or later, you'll find a case where it doesn't have a perfect fit and
you need to change just a small detail. And then you'll start running in
circles 'cause, well, how the hell the macro/function did <em>that</em>?</p>
<p>I've bitten before by <a href="http://spring.io/">Spring</a> and
<a href="https://serde.rs/">Serde</a> 'cause I started with the shortcuts without
understanding what they were doing. And then I got a problem which the
shortcut wouldn't solve, requiring me to go deep into the documentation. And
because I skipped a few steps and jumped straight into the shortcut, it took
me awhile to actually get <em>what</em> I needed to do different from the shortcut to
solve my problem: I had no idea what the shortcut did and, thus, I had no idea
what I needed differently from the shortcut to solve my problem.</p>
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&lt;&lt; <a href="&#x2F;books&#x2F;things-i-learnt&#x2F;functional-programming">Learn The Basics of Functional Programming</a>
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&nbsp;
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<a href="&#x2F;books&#x2F;things-i-learnt&#x2F;debuggers">Debuggers Are Overrated</a> &gt;&gt;
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