Full path of a json object

Question

I\'m trying to flatten an object where the keys will be the full path to the leaf node. I can recursively identify which are the leaf nodes but stuck trying to construct the

Answer 1

Here is an interative solution using object-scan.

object-scan is a data processing tool, so the main advantage here is that it would be easy to do further processing or processing while extracting the desired information

// const objectScan = require('object-scan');

const myData = { one: 1, two: { three: 3 }, four: { five: 5, six: { seven: 7 }, eight: 8 }, nine: 9 };

const flatten = (data) => {
  const entries = objectScan(['**'], {
    rtn: 'entry',
    joined: true,
    filterFn: ({ isLeaf }) => isLeaf
  })(data);
  // could use Object.fromEntries(entries.reverse()) instead
  return entries.reduceRight((p, [k, v]) => {
    p[k] = v;
    return p;
  }, {});
};

console.log(flatten(myData));
// => { one: 1, 'two.three': 3, 'four.five': 5, 'four.six.seven': 7, 'four.eight': 8, nine: 9 }

.as-console-wrapper {max-height: 100% !important; top: 0}

Disclaimer: I'm the author of object-scan