Alternative to lodash get method _.get()

lodashGetAlternative.js

function get(obj, path, def) {
	var fullPath = path
		.replace(/\[/g, '.')
		.replace(/]/g, '')
		.split('.')
		.filter(Boolean);

	return fullPath.every(everyFunc) ? obj : def;

	function everyFunc(step) {
		return !(step && (obj = obj[step]) === undefined);
	}
}

@JamesGardnerKT

If you knew the depth you could do something like:

const obj = {
  a: {
    b: {
      c: 1
    }
  }
}

const path = 'a.b.c'
const fallback = 2
const parts = path.split('.')

const value = obj[parts[0]]?.[parts[1]]?.[parts[2]] ?? fallback
console.log(value) // 1

If you don't know the depth, I think the get method is going to be the best route. You could check the length of parts and do a switch and handle all possible depths, but Im not sure if thats going to out perform the get methods above.

Maybe I will maintain a benchmark for this problem.