ES2015 Proxies (in Chrome 49 and later) provide JavaScript with an intercession API, enabling us to trap or intercept all of the operations on a target object and modify how this target operates. Proxies have a large number of uses, including: Interception Object virtualization Resource management Profiling or logging for debugging Security and access control Contracts for object use The Proxy API
 
     
       
       
      ![JSがブラウザを固めてつらいので、新しいAPI「requestIdleCallback」を使うことにした - pixiv inside [archive]](https://cdn-ak-scissors.b.st-hatena.com/image/square/5b57439e519b8225596833cbeec695af4ea9b017/height=288;version=1;width=512/https%3A%2F%2Fcdn.image.st-hatena.com%2Fimage%2Fscale%2F5a12aaeef7617422f0ccc3442d89a792c5f3e3fa%2Fbackend%3Dimagemagick%3Bversion%3D1%3Bwidth%3D1300%2Fhttp%253A%252F%252Fcdn-ak.f.st-hatena.com%252Fimages%252Ffotolife%252Fd%252Fdevpixiv%252F20151217%252F20151217010303.jpg) 
      ![FluxのActionとStoreをちゃんと分ける話 - pixiv inside [archive]](https://cdn-ak-scissors.b.st-hatena.com/image/square/f0dc903a09dd0db9542d08d176be2911190b205f/height=288;version=1;width=512/https%3A%2F%2Fcdn.image.st-hatena.com%2Fimage%2Fscale%2Ff5b365d4045ffa2adfb0f013c105cc50076def6d%2Fbackend%3Dimagemagick%3Bversion%3D1%3Bwidth%3D1300%2Fhttp%253A%252F%252Fcdn-ak.f.st-hatena.com%252Fimages%252Ffotolife%252Fg%252Fgeta6%252F20151218%252F20151218175826.png) 
       
       
       
       
       
       
       
       
       
       
       
      

