get keys from json arrray

by bilbobaggins

JavaScript

var a=[{ gender: "m"},{gender: "f"}]
//console.log(Object.keys(a))
//console.log(Object.entries(a))
let transformJSObj=function(a)
{
let keys=[...new Set(a.map(
     value => Object.keys(value).toString()
    ))].toString()
      // console.log(keys)                  
let keysval=[...new Set(a.map(
     value => Object.values(value).toString()
    ))]                  
   return [{[keys]:keysval}]
}