for in js with object code example
Example 1: js for in object
var obj = { foo: 'bar', baz: 42 };
console.log(Object.entries(obj)); // [ ['foo', 'bar'], ['baz', 42] ]
for(const [i, val] of Object.entries(obj))
new_obj[i] = val;
Example 2: object for loop
const object = {a: 1, b: 2, c: 3};
for (const property in object) {
console.log(`${property}: ${object[property]}`);
}