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larlet-fr-david-cache


			
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<h1>
  <span><a id="jumper" href="#jumpto" title="Un peu perdu ?">?</a></span>
  Small lessons, loosely learned (archive)
  <time>Pour la pérennité des contenus liés. Non-indexé, retrait sur simple email.</time>
</h1>
<section>
  <article>
    <h3><a href="https://adactio.com/journal/10078">Source originale du contenu</a></h3>
    <p>When <a href="https://www.lottejackson.com/learning/what-a-year-what-next">Charlotte published her end-of-year report</a>, she outlined her plans for 2016, which included “Document my JavaScript learning journey.”</p>

<blockquote>
  <p>I want to get into the habit of writing one JavaScript post every week to make sure I keep up with learning it. Even if it’s just a few words about some relevant terminology; it can be as long or short as desired or time allows, as long as it happens.</p>
</blockquote>

<p>An excellent plan! If you really want to make sure you’ve understood something, write down an explanation of it. There’s nothing quite like writing to really test your grasp of an idea. Even if nobody else ever reads it, it’s still an extremely valuable exercise for yourself.</p>

<p>Charlotte has already started. Here’s <a href="https://www.lottejackson.com/learning/javascript-learning-1">a short post on using JavaScript to pick a random an item at random from an array</a>:</p>

<pre><code>Math.round(Math.random() * (array.length - 1))
</code></pre>

<p>It might seem like a small thing, but look what you have to understand:</p>

<ul>
<li>How <code>Math.round</code> works (pretty straightforward—it rounds a floating point number to the nearest whole number).</li>
<li>How <code>Math.random</code> works (less straightforward—it gives a random number between zero and one, meaning you have to multiply it to do anything useful with the result).</li>
<li>How <code>array.length</code> works (seems straightforward—it gives you the total number of items in an array, but then catches you out when you realise there can never be an index with that total value because the indices are counted from zero …which gives rise to <a href="https://en.wikipedia.org/wiki/Off-by-one_error">an entire class of programming error</a>).</li>
</ul>

<p>I really like this approach to learning: document each small thing as you go instead of waiting until all those individual pieces click together. That’s the approach <a href="http://www.andybudd.com/archives/2003/08/clearing_floats/">Andy took when he was learning CSS</a> and it led to him <a href="https://openlibrary.org/books/OL25151975M/CSS_mastery">writing a book on the subject</a>.</p>

<p>When it comes to problem-solving in general (and JavaScript in particular), I have a similar bias towards single-purpose solutions. Rather than creating a monolithic framework that attempts to solve all possible problems, I prefer a collection of smaller scripts that only do one thing, but do it really well; <a href="https://en.wikipedia.org/wiki/Unix_philosophy">the UNIX philosophy</a>.</p>

<p>Take, for example, <a href="https://remysharp.com/2015/06/02/bind">Remy’s bind.js</a>. It does two-way data-binding and nothing else. If you only need one-way data-binding, there’s <a href="http://simulacra.js.org/">Simulacra.js</a>, which takes a similar minimalist, hands-off approach.</p>

<p>This approach of breaking large problems down into a collection of smaller problems also came up in a completely unrelated discussion at work recently. I floated the idea of starting a book club at <a href="http://clearleft.com/">Clearleft</a>. Quite a few people are into the idea, but they’re not sure they could commit the time to reading a book on a deadline. Fair enough. Perhaps we could have the book club on a chapter-by-chapter basis? I don’t think that would work all that well for novels, but it did make me think of something related to Charlotte’s stated goal of learning more JavaScript…</p>

<p><a href="https://gablaxian.com/">Graham</a> has been raving about the <a href="https://github.com/getify/You-Dont-Know-JS/blob/master/README.md#you-dont-know-js-book-series"><cite>You Don’t Know JS</cite></a> book series by the supersmart <a href="http://getify.me/">Kyle Simpson</a>. I suggested to Charlotte that we read through the books at the rate of one chapter a week. The first book is called <a href="https://github.com/getify/You-Dont-Know-JS/blob/master/up%20%26%20going/README.md"><cite>Up and Going</cite></a> and our first chapter will be <a href="https://github.com/getify/You-Dont-Know-JS/blob/master/up%20&amp;%20going/ch1.md"><cite>Into Programming</cite></a>, starting this week. Then at the end of the week we’ll get together to compare notes.</p>

<p>I’m hoping that by doing this together, <a href="http://ianfeather.co.uk/communal-momentum-and-accountability/">there’s more chance that we’ll actually see it through to completion</a>:</p>

<blockquote>
  <p>Why can I hit deadlines imposed by others, but not those imposed by myself?</p>
</blockquote>
  </article>
</section>


<nav id="jumpto">
  <p>
    <a href="/david/blog/">Accueil du blog</a> |
    <a href="https://adactio.com/journal/10078">Source originale</a> |
    <a href="/david/stream/2019/">Accueil du flux</a>
  </p>
</nav>

<footer>
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    <p>
      Bonjour/Hi!
      Je suis <a href="/david/" title="Profil public">David&nbsp;Larlet</a>, je vis actuellement à Montréal et j’alimente cet espace depuis 15 ans. <br>
      Si tu as apprécié cette lecture, n’hésite pas à poursuivre ton exploration. Par exemple via les <a href="/david/blog/" title="Expériences bienveillantes">réflexions bimestrielles</a>, la <a href="/david/stream/2019/" title="Pensées (dés)articulées">veille hebdomadaire</a> ou en t’abonnant au <a href="/david/log/" title="S’abonner aux publications via RSS">flux RSS</a> (<a href="/david/blog/2019/flux-rss/" title="Tiens c’est quoi un flux RSS ?">so 2005</a>).
    </p>
    <p>
      Je m’intéresse à la place que je peux avoir dans ce monde. En tant qu’humain, en tant que membre d’une famille et en tant qu’associé d’une coopérative. De temps en temps, je fais aussi des <a href="https://github.com/davidbgk" title="Principalement sur Github mais aussi ailleurs">trucs techniques</a>. Et encore plus rarement, <a href="/david/talks/" title="En ce moment je laisse plutôt la place aux autres">j’en parle</a>.
    </p>
    
    <p>
      Voici quelques articles choisis :
      <a href="/david/blog/2019/faire-equipe/" title="Accéder à l’article complet">Faire équipe</a>,
      <a href="/david/blog/2018/bivouac-automnal/" title="Accéder à l’article complet">Bivouac automnal</a>,
      <a href="/david/blog/2018/commodite-effondrement/" title="Accéder à l’article complet">Commodité et effondrement</a>,
      <a href="/david/blog/2017/donnees-communs/" title="Accéder à l’article complet">Des données aux communs</a>,
      <a href="/david/blog/2016/accompagner-enfant/" title="Accéder à l’article complet">Accompagner un enfant</a>,
      <a href="/david/blog/2016/senior-developer/" title="Accéder à l’article complet">Senior developer</a>,
      <a href="/david/blog/2016/illusion-sociale/" title="Accéder à l’article complet">L’illusion sociale</a>,
      <a href="/david/blog/2016/instantane-scopyleft/" title="Accéder à l’article complet">Instantané Scopyleft</a>,
      <a href="/david/blog/2016/enseigner-web/" title="Accéder à l’article complet">Enseigner le Web</a>,
      <a href="/david/blog/2016/simplicite-defaut/" title="Accéder à l’article complet">Simplicité par défaut</a>,
      <a href="/david/blog/2016/minimalisme-esthetique/" title="Accéder à l’article complet">Minimalisme et esthétique</a>,
      <a href="/david/blog/2014/un-web-omni-present/" title="Accéder à l’article complet">Un web omni-présent</a>,
      <a href="/david/blog/2014/manifeste-developpeur/" title="Accéder à l’article complet">Manifeste de développeur</a>,
      <a href="/david/blog/2013/confort-convivialite/" title="Accéder à l’article complet">Confort et convivialité</a>,
      <a href="/david/blog/2013/testament-numerique/" title="Accéder à l’article complet">Testament numérique</a>,
      et <a href="/david/blog/" title="Accéder aux archives">bien d’autres…</a>
    </p>
    <p>
      On peut <a href="mailto:david%40larlet.fr" title="Envoyer un courriel">échanger par courriel</a>. Si éventuellement tu souhaites que l’on travaille ensemble, tu devrais commencer par consulter le <a href="http://larlet.com">profil dédié à mon activité professionnelle</a> et/ou contacter directement <a href="http://scopyleft.fr/">scopyleft</a>, la <abbr title="Société coopérative et participative">SCOP</abbr> dont je fais partie depuis six ans. Je recommande au préalable de lire <a href="/david/blog/2018/cout-site/" title="Attention ce qui va suivre peut vous choquer">combien coûte un site</a> et pourquoi je suis plutôt favorable à une <a href="/david/pro/devis/" title="Discutons-en !">non-demande de devis</a>.
    </p>
    <p>
      Je ne traque pas ta navigation mais mon
      <abbr title="Alwaysdata, 62 rue Tiquetonne 75002 Paris, +33.184162340">hébergeur</abbr>
      conserve des logs d’accès.
    </p>
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