Set value in array to key in object reduce/return value inside object

Question

The following should put out "Yuval"

console.log(pathFind(["book", "author", "name"], {
  book: {
    author: {
      name: "Yuval"
    }
  }
}));

I've tried writing this function but it keeps returning undefined :

function pathFind(path, object) {
  return path.reduce((accumulator, name) => {
    if(accumulator && accumulator[name] != typeof 'object') {
      accumulator[name]
    } else {
      undefined, object
    }
  })
} 

What am I missing? (a typo?)

Is there a way to use recursion inside this function in combination with reduce? (ie how to approach recursion for this?)

Answer 1

Try the following:

 var obj = { book: { author: { name: "Yuval" } } }; var path = ["book", "author", "name"]; function findPath(obj, path){ if(path.length === 0) return obj; return findPath(obj[path[0]], path.slice(1)); } console.log(findPath(obj,path));