Files
Geoffrey Booth 8061ecf0e2 2.3.0 (#5043)
* Move analytics initialization into docs.coffee

* Bump Bootstrap and CodeMirror versions

* Update output

* Merge CodeMirror styles

* Update CodeMirror styles

* Better flexbox layout for docs, including flex auto-sized sidebar and main column

* Minor styling fixes for Edge

* Fix scrollspy for new layout

* Update output

* Clicking on the CoffeeScript logo in the navbar should scroll to top; fix main column width on mobile

* Update output

* 2.3.0 changelog

* Update operators section for **

* Update docs for ES2018 object rest/spread

* Remove references to Node's experimental modules support

* Move the README coffee cup to the right side, so our name isn't cut off on the NPM page; update README and CONTRIBUTING text

* Update dependencies

* Add compatibility note for async generators

* Bump version to 2.3.0 and update output

* Have CI test in Node 10 instead of 9

* Somehow this gets generated slightly differently in Node 10

* Fix #4042: Update broken link
2018-04-28 18:57:15 -07:00

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Splats, or Rest Parameters/Spread Syntax

The JavaScript arguments object is a useful way to work with functions that accept variable numbers of arguments. CoffeeScript provides splats ..., both for function definition as well as invocation, making variable numbers of arguments a little bit more palatable. ES2015 adopted this feature as their rest parameters.

codeFor('splats', true)

Splats also let us elide array elements...

codeFor('array_spread', 'all')

...and object properties.

codeFor('object_spread', 'JSON.stringify(currentUser)')

In ECMAScript this is called spread syntax, and has been supported for arrays since ES2015 and objects since ES2018.