Tutorials, protips and other technical stuff, mostly about JavaScript, React and Git 2023-04-10T00:00:00Z https://delicious-insights.com/en/ Delicious Insights 2023-04-10T00:00:00Z https://delicious-insights.com/en/posts/git-protip-gitignore-io/ The .gitignore file is great! But it can be tedious to fill in. What if we could do it all in one go? 2023-04-10T00:00:00Z https://delicious-insights.com/en/posts/git-ignore/ How can we avoid adding unwanted files to Git? And reciprocally, how can we add otherwise ignored files? 2023-03-27T00:00:00Z https://delicious-insights.com/en/posts/git-config-part-2/ Using Git optimally goes through tweaking its configuration! 2023-03-22T00:00:00Z https://delicious-insights.com/en/posts/js-protip-array-from-fill/ Array.fill() or Array#from()?! It all depends on what you need, so here’s your guide to picking the right one every time. 2023-02-08T00:00:00Z https://delicious-insights.com/en/posts/js-protip-timers-promises/ Callback-based `setTimeout()` is dead, long live promise-based `await` delays! 2023-02-06T00:00:00Z https://delicious-insights.com/en/posts/git-mergetool/ Resolving conflicting files after a merge can be time consuming. Fortunately Git provides us with a tool to speed this up! 2023-01-30T00:00:00Z https://delicious-insights.com/en/posts/git-push-auto-setup-remote/ No more explicit branch tracking on push! Say hello to autoSetupRemote configuration! 2023-01-23T00:00:00Z https://delicious-insights.com/en/posts/git-push-with-lease/ Did you know that you could force the push without risking to erase your collegues work? 2022-12-22T00:00:00Z https://delicious-insights.com/en/posts/react-pwa/ Our flagship training course expands and changes name to better reflect its core tenets! 2022-12-12T00:00:00Z https://delicious-insights.com/en/posts/git-autocorrect/ Do you make typos when writing your commands? Would you like Git to correct automatically? 2022-12-07T00:00:00Z https://delicious-insights.com/en/posts/js-protip-array-flat-flatmap/ Pas besoin de bibliothèques tierces pour aplanir des tableaux en JavaScript, y compris lors d’opérations `.map()` renvoyant des tableaux ! 2022-10-28T00:00:00Z https://delicious-insights.com/en/posts/js-protip-time-distances/ Find out how to easily and cleanly format date/time distances in JavaScript whilst honoring locale preferences, all without resorting to third-party libraries! 2022-10-27T00:00:00Z https://delicious-insights.com/en/posts/js-protip-date-ranges/ Find out how to easily and cleanly format date/time ranges in JavaScript whilst honoring locale preferences, all without resorting to third-party libraries! 2022-10-26T00:00:00Z https://delicious-insights.com/en/posts/js-protip-date-formatting/ Find out how to easily and cleanly format dates and times in JavaScript whilst honoring locale preferences, all without resorting to third-party libraries! 2022-10-19T00:00:00Z https://delicious-insights.com/en/posts/js-protip-last-items/ Check out the many ways — some brand-new! — to grab stuff from the end of an array in JavaScript. 2022-10-17T00:00:00Z https://delicious-insights.com/en/posts/git-protip-autoreword/ What about an alias that would to the job for you? 2022-10-17T00:00:00Z https://delicious-insights.com/en/posts/git-protip-autofixup/ You can quickly "update" an old commit thanks to "commit --fixup" 2022-10-10T00:00:00Z https://delicious-insights.com/en/posts/git-protip-log-l/ Use "git log -L" to track changes only within a code block, figure out who actually introduced a bug, etc. 2022-10-10T00:00:00Z https://delicious-insights.com/en/posts/git-protip-dont-blame-me/ Do you think "git blame" is a good idea? You’re wrong! 2022-09-28T00:00:00Z https://delicious-insights.com/en/posts/js-protip-npm-check/ Easily keep your JS deps in sync with npm-check! So much nicer than npm outdated + update… 2022-09-26T00:00:00Z https://delicious-insights.com/en/posts/git-protip-amend/ You just screwed up your last commit and want to fix it? The "git commit --amend" command is your friend! 2022-08-29T00:00:00Z https://delicious-insights.com/en/posts/git-protip-lg/ The classic Git log (for displaying the commit history) does not fit the standard use case. Rather than using a graphical interface, let’s use an alias and a custom log. 2022-08-28T00:00:00Z https://delicious-insights.com/en/posts/git-protip-diff-so-fancy/ See differences in files, line by line, without any visual pollution 2022-02-16T00:00:00Z https://delicious-insights.com/en/posts/js-default-values/ Default values might seem like a simple topic, but JS seized that opportunity to get more powerful ones than most, making it well worth the wait! Read all the juicy bits in this post! 2022-02-14T00:00:00Z https://delicious-insights.com/en/posts/js-rest-spread/ Rest / Spread is kind of a cousin to destructuring, and has become a must in modern JS… Learn how to unleash its power on objects and iterables! 2022-01-31T00:00:00Z https://delicious-insights.com/en/posts/js-destructuring/ Destructuring has quickly become a staple of modern JS code… but are you sure you understand it properly? 2022-01-17T00:00:00Z https://delicious-insights.com/en/posts/js-classes/ So you think you now everything on ES2015+ classes? Let’s wager you’ll still learn a ton in this article… 2021-12-23T00:00:00Z https://delicious-insights.com/en/posts/js-computed-property-names/ Fed up with having to use a temp variable just so you can add a dynamically-named property to object literals? Computed property names to the rescue! 2021-12-23T00:00:00Z https://delicious-insights.com/en/posts/js-shorthand-properties/ Make your object literals lighter with shorthand syntax for properties and methods, available since ES0215. 2021-12-23T00:00:00Z https://delicious-insights.com/en/posts/idiomatic-js/ Enjoy our new must-see series of articles and videos: Idiomatic JS! 2020-05-22T00:00:00Z https://delicious-insights.com/en/posts/js-index-proxies/ Proxies are a wonderful feature from ES2015. This post explores a cool trick you can do with them: negative array indices. 2020-05-21T00:00:00Z https://delicious-insights.com/en/posts/js-new-target/ Have you heard about new.target? Thanks to this unusual reference, you can easily implement abstract classes by forbidding some uses of the new operator… 2020-05-20T00:00:00Z https://delicious-insights.com/en/posts/js-for-of/ Forget numerical for: the for…of loop that came out in ES2015 is your new best friend. Such versatility! 2020-05-19T00:00:00Z https://delicious-insights.com/en/posts/js-object-map/ Sometimes a plain object is enough. Other times you’ll want a Map. But why, and how, can you switch between one and the other? 2020-05-18T00:00:00Z https://delicious-insights.com/en/posts/js-object-spread-assign/ With everyone boarding the “object spread” train, is there still a place for the Object.assign(…) API? Are they even different? Yes, and yes! 2020-05-17T00:00:00Z https://delicious-insights.com/en/posts/js-named-captures/ ES2018 finally brings named capturing groups to regular expressions and boy is it cool! 2020-05-16T00:00:00Z https://delicious-insights.com/en/posts/const-is-the-new-var/ Should you still use “var”? Should we just replace it with “let”? What about “const” anyway? In this post, we’ll explain why “const” should be your go-to declarative keyword. 2020-05-15T00:00:00Z https://delicious-insights.com/en/posts/js-optional-named-parameters/ JavaScript doesn’t have keyword parameters? No worries! Named destructuring offers a way out… but beware of edge cases. 2020-05-14T00:00:00Z https://delicious-insights.com/en/posts/js-extract-emojis/ Emojis are everywhere, but it’s hard to identify, extract and collect them from a string. They’re on the rise and always use surrogate pairs… How can we be quick and clean about this? 2020-05-13T00:00:00Z https://delicious-insights.com/en/posts/js-array-sorting/ Sorting complex data arrays in JS is often Mission Impossible… yet native capabilities are amazing! 2020-05-12T00:00:00Z https://delicious-insights.com/en/posts/js-numeric-separators/ Tired of having to manually count the digits to get the scale of a number? Annoyed by having to manually split to isolate its components? Numeric separators are finally here! 2020-05-11T00:00:00Z https://delicious-insights.com/en/posts/js-strip-blank-values/ Need to clean up an array? We’ve got a lot of solutions, and some are… super concise! 2020-05-10T00:00:00Z https://delicious-insights.com/en/posts/js-invert-by-destructuring/ If you’re still going through a temporary variable to invert two others, You’re Doing It Wrong™ 2020-05-09T00:00:00Z https://delicious-insights.com/en/posts/js-labels/ Sometimes the best way to short-circuit nested loops is statement labels! 2020-05-08T00:00:00Z https://delicious-insights.com/en/posts/js-strings-unicode/ Everything you should know to correctly process advanced Unicode codepoints in JavaScript strings. 2020-05-07T00:00:00Z https://delicious-insights.com/en/posts/array-splice/ Do you *really* know Array#splice, the Swiss-army knife of JavaScript array tweaking? 2020-05-06T00:00:00Z https://delicious-insights.com/en/posts/js-number-formatting/ Fine-tuning number formating with JS? Easy as pie! 2020-05-05T00:00:00Z https://delicious-insights.com/en/posts/js-string-slice/ Splitting strings in JS? Thow away substring and forget substr! Your salvation lies with slice! 2020-05-04T00:00:00Z https://delicious-insights.com/en/posts/js-array-deduplication/ Discover the best way to deduplicate an array since ES2015… 2020-04-27T00:00:00Z https://delicious-insights.com/en/posts/js-nuggets/ Every day a JavaScript nugget, for 19 days! 2020-02-25T00:00:00Z https://delicious-insights.com/en/posts/call-and-apply-in-javascript/ JavaScript does not intrinsically bind your functions to a specific “this”… but that means JS lets you call them with an explicitly given “this”! What’s it useful for, and how to go about it? 2019-06-14T00:00:00Z https://delicious-insights.com/en/posts/async-js-screencast/ Our first screencast is out! 4hr and 40+ code samples for just €29, the go-to top-notch course. 2019-01-03T00:00:00Z https://delicious-insights.com/en/posts/git-hooks-commit/ Enhance your code and your commit messages with Git hooks. 2017-12-04T00:00:00Z https://delicious-insights.com/en/posts/new-q2-2018-sessions/ A whole slew of new training dates for Q2 2018: Webpack, 360° ES, Git, Node.js, Modern Web Apps… 2017-09-25T00:00:00Z https://delicious-insights.com/en/posts/360-es-and-webpack/ Check out our 2 new courses:: 100% of latest-gen JavaScript and a deep-dive into Webpack… 2017-09-23T00:00:00Z https://delicious-insights.com/en/posts/360js-becomes-mwa/ Our “360° JS” training rebrands as “Modern Web Apps”: why? 2017-04-14T00:00:00Z https://delicious-insights.com/en/posts/git-hooks/ Improve quality and reduce stress with tasks automation. 2016-05-11T00:00:00Z https://delicious-insights.com/en/posts/git-reset/ The git reset command is a formidable tool unfortunately far too often misunderstood or poorly used. This is too bad, as it opens up a wide range of solutions and tips to optimize our work and workflows. 2016-05-02T00:00:00Z https://delicious-insights.com/en/posts/mastering-github/ Last December, we had told you about the release of the first-parter in our GitHub training video series: Learning GitHub. We had then hinted at the second part, aimed at topics even more advanced. 2016-04-15T00:00:00Z https://delicious-insights.com/en/posts/node-js-key-figures-2016/ A couple days ago, the Node.js Foundation released its first-ever Node.js User Survey Report. It is chock-full of interesting data points. Here’s what peaked my interest most. 2016-01-16T00:00:00Z https://delicious-insights.com/en/posts/20-years/ A look back on Christophe’s 20 years so far of professional IT career. 2015-01-30T00:00:00Z https://delicious-insights.com/en/posts/mastering-git-subtrees/ A month ago we were exploring Git submodules; I told you then our next in-depth article would be about subtrees, which are the main alternative. 2014-12-31T00:00:00Z https://delicious-insights.com/en/posts/mastering-git-submodules/ If you used submodules before, you certainly got a few scars to show for it, probably swearing off the dang thing. Submodules are hair-pulling for sure, what with their host of pitfalls and traps lurking around most use cases. Still, they are not without merits, if you know how to handle them. 2014-12-09T00:00:00Z https://delicious-insights.com/en/posts/git-bisect/ Oooh, what a nasty bug you just noticed! Alas, you can’t seem to find out where it originates just now, and it appears to have been around for a while, too… How can you avoid combing through the entire history? 2014-11-28T00:00:00Z https://delicious-insights.com/en/posts/how-to-make-git-preserve-specific-files-while-merging/ Oh boy, are branches great. They let you have entirely different versions of a given file, depending on the context. The thing is, in a few (not so rare) situations, you may want to version a file that changes from branch to branch, but retain its current content when merging another branch into yours. 2014-11-04T00:00:00Z https://delicious-insights.com/en/posts/git-rerere/ So you fixed a conflict somewhere in your repo, then later stumbled on exactly the same one (perhaps you did another merge, or ended up rebasing instead, or cherry-picked the faulty commit elsewhere…). And bang, you had to fix that same conflict again. That sucks. 2014-09-15T00:00:00Z https://delicious-insights.com/en/posts/30-git-cli-options-you-should-know-about/ You think you know Git? Maybe you do… And yet, I’d bet my shirt that many cool little command-line options remain unknown to you. 2014-08-28T00:00:00Z https://delicious-insights.com/en/posts/whats-new-since-git-1-7/ A lot of people use Git without quite tracking what’s coming up in later releases. Sometimes you just go with whatever’s available on your Linux distro, even if that is quite outdated. 2014-05-04T00:00:00Z https://delicious-insights.com/en/posts/getting-solid-at-git-rebase-vs-merge/ Each one is best for specific purposes, so learn when to use them efficiently, and why. 2013-04-03T00:00:00Z https://delicious-insights.com/en/posts/git-configuration/ Detailed overview of must-have settings for efficiently using Git everyday. A must-read.