I send out an email every so often about cool stuff I'm working on or launching. Working with Webpack and babel/preset-env Currently, babel/preset-env is unaware that using import() with Webpack relies on Promise internally. Otherwise, they will interrupt the page rendering. Somos Babel, un equipo internacional con cerca de 2.700 profesionales altamente especializados en tecnologías de vanguardia cuya misión es acompañar a grandes clientes en sus retos y procesos de negocio digitales. I personally am not worried about the speed loss for my use cases, but definitely something to note.Īnother Note: I use Blade stacks to group my JavaScript snippets in the or the bottom of the tag. Your JavaScript will be slower because it's not pre-transpiled. Note: Babel will throw a warning that you shouldn't be using this in a production context. If you're interested in more info (adding babel configuration, using plugins, etc.), you can check out the docs page: If you are compiling generators or async function to ES5, and you are using a version of babel/core or babel/plugin-transform-regenerator older than 7.18.0, you must also load the regenerator runtime package.
Unpkg babel code#
This code will now run on browsers as old as IE 11. As of Babel 7.4.0, this package has been deprecated in favor of directly including core-js/stable (to polyfill ECMAScript features). Version: 7.0.0-beta.4, 7.0.0-beta.5, 7.0.0-beta.31, 7.0.0-beta.32, 7.0.0-beta.33, 7.0.0-beta.34. This tells Babel to transpile and process the JavaScript inside these tags. Now specify text/babel as the type of the script tag from before:
Here's a solution:Īdd the following two files from a CDN to the section of your page: If you, like me, aren't willing to give up the simplicity of sprinkling JS inside script tags around your app. If I were writing this bit of code in a more robust JavaScript build setup (like laravel-mix), Babel would automatically transpile this arrow function so older browsers will recognize it. This is the biggest pitfall of this approach. This is fine in most modern browsers, but in lots of apps I work on, it's important to support legacy browsers like IE 11. Notice my use of ES6 arrow functions for the click handler. Var button = document.querySelector('button') If I need to do something small, I'll typically add a little inline tag and just do it right there.įor example, let's show an alert message when a user clicks a button. You can get a lot farther with them nowadays than you could back in the day. Instead of reaching for Vue or React, I first see if I can solve my UI needs with plain old CSS (on top of Tailwind of course) and JavaScript.