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118 lines
4.4 KiB
118 lines
4.4 KiB
11 months ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta http-equiv="content-type" content="text/html; charset=utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1, viewport-fit=cover">
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<title>Julio Biason .Me 4.3</title>
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<!-- CSS -->
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<link rel="stylesheet" href="https://blog.juliobiason.me/print.css" media="print">
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<link rel="stylesheet" href="https://blog.juliobiason.me/poole.css">
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<link rel="stylesheet" href="https://blog.juliobiason.me/hyde.css">
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<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=PT+Sans:400,400italic,700|Abril+Fatface">
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</head>
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<body class=" ">
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<div class="sidebar">
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<div class="container sidebar-sticky">
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<div class="sidebar-about">
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<a href="https://blog.juliobiason.me"><h1>Julio Biason .Me 4.3</h1></a>
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<p class="lead">Old school dev living in a 2.0 dev world</p>
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</div>
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<ul class="sidebar-nav">
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<li class="sidebar-nav-item"><a href="/">English</a></li>
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<li class="sidebar-nav-item"><a href="/pt">Português</a></li>
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<li class="sidebar-nav-item"><a href="/tags">Tags (EN)</a></li>
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<li class="sidebar-nav-item"><a href="/pt/tags">Tags (PT)</a></li>
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</ul>
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</div>
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<div class="content container">
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<div class="post">
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<h1 class="post-title">Things I Learnt The Hard Way - If You Know How To Handle It, Handle It</h1>
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<span class="post-date">
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2019-06-24
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<a href="https://blog.juliobiason.me/tags/books/">#books</a>
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<a href="https://blog.juliobiason.me/tags/things-i-learnt/">#things i learnt</a>
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<a href="https://blog.juliobiason.me/tags/exceptions/">#exceptions</a>
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<a href="https://blog.juliobiason.me/tags/error-handling/">#error handling</a>
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</span>
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<p>If you know an error can occur, then you should handle it properly, instead of
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ignoring it.</p>
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<span id="continue-reading"></span>
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<p>This is the opposite point of <a href="/books/things-i-learnt/crash-it">let it crash</a>:
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You're writing some code that you <em>know</em> it can crash in a certain way, what
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should you do? Well, the answer is simple: <em>handle</em> it, not <em>ignore</em> it.</p>
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<p>If we go back to the fact that Java will describe every single exception that
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can be thrown by a function, you should handle each exception, no excuses.</p>
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<p>If you're using Python, then you should capture the exceptions you know how to
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handle, no exceptions -- and tying with the previous point, if you don't know
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how to handle them, you should not capture them in the first place.</p>
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<p>But, no matter what language you're using, if you know an error/exception can
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occur, <em>deal with it</em>. If you have to save the content of the user somewhere
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else, log it to be reprocessed later or even just show an error message, do
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it.</p>
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<p>Although I seriously meant it, it doesn't mean you have to remember every
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single exception/error code and what it means when calling a function. You can
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write code that will actually go through the happy path and later fill the
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blanks. Or even, when you're working on another part of the code, if you
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remember another problem, just write on a post-it and add the handling later.
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The important bit is not to forget to handle it.</p>
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<div>
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<div style="float:left">
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<< <a href="/books/things-i-learnt/crash-it">It's Better To Let The Application Crash Than Do Nothing</a>
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</div>
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<div style="float:right">
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<a href="/books/things-i-learnt/data-types">Types Say What You Data Is</a> >>
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</div>
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</div>
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</div>
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</div>
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</body>
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</html>
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