Extract the inner field objects and apply them to respective top level objects using Dataweave2.0

I am trying to achieve the below output from the given input. I have tried several ways of making a generic function so that when any data is passed with similar structure I get the similar output. Please help me to achieve this.

Input

[{
  "name": "Thinker",
  "details": [
      {
      "num": 1
      }, 
      {
      "num": 2
      }
   ]
}, 
{
  "name": "Blinker",
  "details": [
      {
      "num": 3
      }, 
      {
      "num": 4
      }
   ]
}]

Output

[{
  "name": "Thinker",
  "num": 1
},
{
  "name": "Thinker",
  "num": 2
},
{
  "name": "Blinker",
  "num": 3
},
{
  "name": "Blinker",
  "num": 4
}]

>Solution :

Try this DW

1st Map to Map on main array

2nd Map to Map on details

reduce to convert nested array to single array

%dw 2.0
output application/json
---
payload map(
    ($.details map(item,index)->{
        "name":($.name),
        "num":item[0]
    })
)reduce($$++$)

Output

[
  {
    "name": "Thinker",
    "num": 1
  },
  {
    "name": "Thinker",
    "num": 2
  },
  {
    "name": "Blinker",
    "num": 3
  },
  {
    "name": "Blinker",
    "num": 4
  }
]

DW

%dw 2.0
output application/json
---
payload map(
    ($.details map(item,index)->{
        (keysOf($)[0]):($.name),
        (keysOf(item)[0]):item[0]
    })
)reduce($$++$)