Object.getOwnPropertyDescriptor ( obj, prop )

描述

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示例

let obj = {
  foo: 123
}


const property = Object.getOwnPropertyDescriptor(obj, 'foo')
console.log(property) // { value: 123, writable: true, enumerable: true, configurable: true }



let o, d;
  o = {
    get foo() {
      return 9
    }
}

d = Object.getOwnPropertyDescriptor(o, 'foo')

console.log(d)
// {
//   get: [Function: get foo],
//   set: undefined,
//   enumerable: true,
//   configurable: true
// }


let obj1 = {},
result
Object.defineProperty(obj1, 'baz', {
  value: 231,
  writable: false,
  enumerable: false
})

result = Object.getOwnPropertyDescriptor(obj1, 'baz')

console.log(result) // { value: 231, writable: false, enumerable: false, configurable: false }