Cycymomo
9/26/2013 - 7:53 AM

140bytes, completeObjectClone polyfill

140bytes, completeObjectClone polyfill

{
  "name": "completeObjectClone",

  "description": "Fully clones an object using Object.create, Object.getPrototypeOf, Object.getOwnPropertyNames, and Object.getOwnPropertyDescriptor.",

  "keywords": [
    "es5",
    "object",
    "descriptor",
    "prototype",
    "clone"
  ]
}
function(a,b){with(Object)return getOwnPropertyNames(a).map(b=function(c){b[c]=getOwnPropertyDescriptor(a,c)}),create(getPrototypeOf(a),b)}
function(
         a,                                  // object to clone
         b                                   // placeholder
){
  with(Object)                               // import Object.*
    return getOwnPropertyNames(a)            // get property names
      .map(b=function(c){                    // iterate names
        b[c]=getOwnPropertyDescriptor(a,c)   // get descriptors
      }),
      create(getPrototypeOf(a),b)            // get proto and create clone
}
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