const { obtainField } = require('xyjax-field-obtainer')
const target = {a: {b: 2}, c: 5}
const a_field = obtainField(target, 'a')
console.log(a_field) // {b: 2}
const a_b_field = obtainField(target, 'a.b')
console.log(a_b_field) // 2
const c_field = obtainField(target, 'c')
console.log(c_field) // 5
const not_existing_field = obtainField(target, 'd')
console.log(c_field) // undefined
const not_existing_nested_field = obtainField(target, 'd.e.f')
console.log(not_existing_nested_field) //undefined
Created from: https://npm.runkit.com/xyjax-field-obtainer