how to flatten objects js code example

Example 1: flatten array object javascript

var flattenArray = function(data) {
	return data.reduce(function iter(r, a) {
		if (a === null) {
			return r;
		}
		if (Array.isArray(a)) {
			return a.reduce(iter, r);
		}
		if (typeof a === 'object') {
			return Object.keys(a).map(k => a[k]).reduce(iter, r);
		}
		return r.concat(a);
	}, []);
}
console.log(flattenArray(data))

//replace data with your array

Example 2: object flatten js

Object.assign(
  {}, 
  ...function _flatten(o) { 
    return [].concat(...Object.keys(o)
      .map(k => 
        typeof o[k] === 'object' ?
          _flatten(o[k]) : 
          ({[k]: o[k]})
      )
    );
  }(yourObject)
)