Map key,value from old object to new key,value object and log it into console.

index.js

//example
// obj {
//     a:0,
//     b:1
// }
// output {
//     a1:1,
//     a2:2
// }
console.log(JSON.stringify(Object.fromEntries(Object.entries("your object with key value").map(([key,value])=>{
  return [key+1,value+1]
})),null,2))
// just code itself
Object.fromEntries(Object.entries("your object with key value").map(([key,value])=>{
  return [key+1,value+1]
})),
// function 
// calback take 2 parameter and should return an array with length =2 .
function mapObject(obj,calback){
  Object.fromEntries(Object.entries(obj,map(([key,value])=>{
    return callback(key,value)
  })))
}