There are several JavaScript tricks that are used widely by experienced programmers. Many of them may not be instantly obvious, especially for beginners. These tricks use language features not by their direct purpose, but rather by their... | Yanis T | Ruby and JavaScript ideologist.
L'actualité du Logiciel Libre et de Linux, sur un site francophone contributif géré par une équipe bénévole par et pour des libristes enthousiastes
Le choix d’une date (Toute contre-pétrie serait malvenue !) est un élément récurrent des formulaires, soit pour saisir une date dans le passé comme la date na
Specifically: advices on loading third party JS :
third-party script is slowing down your page load, you have several options to improve performance:
- Load the script using the
asyncordeferattribute to avoid blocking document parsing. - Consider self-hosting the script if the third-party server is slow.
- Consider Resource Hints like
<link rel=preconnect>or<link rel=dns-prefetch>to perform a DNS lookup for domains hosting third-party scripts. - "Sandbox" scripts with an
iframe - lazy-load content after the main page content loads but before a user might otherwise interact with the page
SockJS Intro Ngoc Dao
Pikaday - A refreshing JavaScript Datepicker — lightweight, no dependencies, modular CSS
Untrusted —or— the Continuing Adventures of Dr. Eval is an exciting Meta-JavaScript Adventure Game wherein you guide the dashing, steadfast Dr. Eval through a mysterious MACHINE CONTINUUM, wherein, using only his trusty computer and the TURING-COMPLETE power of JavaScript, he must literally ALTER HIS REALITY in order to find his freedom! You must literally edit and re-execute the very JavaScript running the game in your browser to save Dr. Eval from this dark and confusing reality!
sql.js - SQLite compiled to JavaScript through Emscripten
https://docs.sentry.io
Track exceptions with modern error logging for :
- JavaScript in the client browser: React, Angular, Ember, Vue, and Backbone
- Python: including Django, Flask, Pyramid
- Node.js: including Express, Koa, and Connect
- PHP: including Laravel, Symfony, and Monolog
- Ruby: including Rails, Sinatra, Rack
- Java: for Java, Android, Scala, Clojure, Kotlin
- Go
Open-source server backend
traceur-compiler - Traceur is a JavaScript.next-to-JavaScript-of-today compiler
ECMAScript 5 's strict mode is a way to opt in to a restricted variant of JavaScript. Strict mode isn't just a subset: it intentionally has different semantics from normal code. Browsers not supporting strict mode will run strict mode code with different behavior from browsers that do, so don't rely on strict mode without feature-testing for support for the relevant aspects of strict mode. Strict mode code and non-strict mode code can coexist, so scripts can opt into strict mode incrementally.
You hear a lot about data binding in AngularJS, and with good reason: its at the heart of everything you do with Angular. I’ve mentioned data binding more than a few times in my guides to directives and filters, but I haven’t quite explained the internals of how data binding works. To novices, it seems…
A quick reference to best practices for writing JavaScript -- links to code patterns and tutorials from around the web
How to use promises natively in JavaScript.