This is only noticeable to tools that use. Added property soaking, with the ?. Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Can you include the code at Question? New --no-wrap option to suppress the safety function wrapper. In a for loop, from compiles to the ES2015 of. CoffeeScript does not output React.createElement calls or any code specific to React or any other framework. Making statements based on opinion; back them up with references or personal experience. To simplify math expressions, ** can be used for exponentiation and // performs floor division. Hiding some control flow inside destructuring is just confusing. Mentioning the super keyword with no arguments now forwards all arguments passed to the function, as in Ruby. Once you have @babel/core and @babel/preset-env (or other presets or plugins) installed, and a .babelrc file (or other equivalent) in place, you can use coffee --transpile to pipe CoffeeScripts output through Babel using the options youve saved. breaking changes for Literate CoffeeScript parsing, still intentionally throws a compiler error, Pipe the CoffeeScript compilers output through Babel before saving or running the generated JavaScript. Therefore the code blocks need to be written as if the comment lines dont exist, with consistent indentation (including whether they are indented with tabs or spaces). Adds, Launch an interactive CoffeeScript session to try short snippets. CoffeeScripts compiled JS now tries to space things out and keep it readable, as you can see in the examples on this page. Theres a new link feature in Try CoffeeScript on this webpage. Soaking a function invocation is now supported. The reverse also holds for not a? Block-style comments are now passed through and printed as JavaScript block comments making them useful for licenses and copyright headers. Bugfix for incorrect scope of variables in chained calls, e.g. Bugfix for regression in 2.2.0 where in certain cases a range iterator variable was declared in the global scope. Added a custom jsl.conf file for our preferred JavaScriptLint setup. JavaScript variable declaration is now pushed up to the top of the scope, making all assignment statements into expressions. The existential operator. CoffeeScript 0.3 includes major syntax changes: Projects are listed in alphabetical order by category. What are the purpose of the extra diodes in this peak detector circuit (LM1815)? They can still re-publish the post if they are not suspended. A generator is simply a function that. There are a few ECMAScript features that CoffeeScript intentionally doesnt support. './browser-compiler-modern/coffeescript.js'. object rest/spread syntax, for objects, Babels website to learn about presets and plugins, Download current version here, 77k when gzipped, CoffeeScript: Accelerated JavaScript Development, CoffeeScript Programming with jQuery, Rails, and Node.js, CoffeeScript Application Development Coookbook, CoffeeScript: Die Alternative zu JavaScript, best list of open-source CoffeeScript examples, Helpers & Utility Functions src/helpers, The CoffeeScript Module src/coffeescript, coffee Command-Line Utility src/command, Some features of ECMAScript are intentionally unsupported, infer the names of such anonymous functions, ES2015 spec regarding function default parameters. Such statements can be run by all modern browsers (when the script is referenced via