flat Object

example.js

inport {flatObject} from './example.js'

const obj = {aaa:{bbb:{c:1,d:7}}, bb:{vv:2}}
console.log(flatObject(obj)}
            
// aaa.bbb.c: 1
// aaa.bbb.d: 7
// aaa.bbb: {c: 1, d: 7}
// aaa: {bbb: {…}}
// bb.vv: 2
// bb: {vv: 2}

flatObject.js

export function flatObject(obj) {
    const dot = '.';
    const flatObject = {};
    const path = [];

    function dig(obj) {
        if (/*is primitive*/ obj !== Object(obj)) return obj;
        for (let key in obj) {
            path.push(key);
            flatObject[path.join(dot)] = dig(obj[key]);
            path.pop();
        }
    }

    dig(obj);
    return flatObject;
}