在Mozilla的sample code for Downloads.jsm有几行使用=>
我不知道的含义:Mozilla的JavaScript中`=>`是做什么的?
let view = {
onDownloadAdded: download => console.log("Added", download),
onDownloadChanged: download => console.log("Changed", download),
onDownloadRemoved: download => console.log("Removed", download),
};
是什么=>
在这里做?
[JavaScript中“=>”的含义是什么意思?](http://stackoverflow.com/q/24900875/1048572) – Bergi