Tech Insights

<p>Keeping Django database migrations backward compatible </p>

<p>Zero downtime database migrations </p>

<p>Goodbye, Clean Code (:eyes:) </p>

<p>The law of large numbers: the average of the results obtained from a large number of trials should be close to the expected value, and will tend to become closer to the expected value as more trials are performed.</p>

<p>A visual introduction to machine learning: </p>

<p>A list of <code>/uses</code> pages detailing developer setups, gear, software and configs. </p>

<p>Eslint-stats: Analyses JS files for error frequency, rather than location. This is helpful when introducing ESLint to an existing project. </p>

<p>numpy has a really handy function called <code>is_busday</code> to check whether a given date is business day or not, it also can receive a list of parameters to give this functionality a power boost such as weekmask (if you need a custom definition for weekdays) and holiday calendar </p>

<p>You don't need a hacky snippet to manipulate dates into the a specific moment, such as EOD. <code>datetime.datetime.combine</code> can do that for you as it receives three parameters: <code>date</code> (can be <code>datetime</code> too), <code>time</code> and <code>tzinfo</code> , the latter being an optional argument. The following snippet will put a given date into EOD:</p> <p>``` from datetime import datetime, time</p> <p>date = datetime.strptime("2019-01-01", "%Y-%m-%d") # datetime.datetime(2029, 1, 1, 0, 0) eod_date = datetime.combine(date, time.max) # datetime.datetime(2029, 1, 1, 23, 59, 59, 999999) ```</p>

<p>precious lessons on management and leadership from Julie Zhuo, Facebook’s VP of Design </p>

<p>API Security Best Practices MegaGuide: </p>

<p>Feature checking versus Version checking </p>

<p>good summary as to why choose freemium or free trial for your SaaS. Or, as the author puts it: "the choice between a functionality-based or time-based paywall". </p>

<p>Every mock.patch() is a little smell </p>

<p>“If You Don't Schedule Time for Maintenance, Your Equipment Will Schedule It for You” - Sprints, marathons and root canals </p>

<p>The best UX and design events in 2020: </p>

<p>Cover's Theorem: A complex pattern-classification problem, cast in a high-dimensional space nonlinearly, is more likely to be linearly separable than in a low-dimensional space</p>

<p>Create and track OKR objectives and results with this simple tool </p>

<p>The best resources for designing and building dark mode experiences across mobile, desktop and the web </p>

<p>Python multiprocessing: understanding logic behind <code>chunksize</code>: </p>

<p>Brazilian tech conferences repo: </p>

<p>Why “Move Fast and Break Things” Doesn’t Work Anymore: </p>

<p>Difference between automate and automatize: As verbs the difference between automatize and automate is that <em>automatize</em> is to make or become automatic while <em>automate</em> is to replace or enhance human labor with machines. </p>

<p>Mark Erikson - A Deep Dive into React-Redux | React Next 2019 </p>