how to iterate through an object in javascript and return a new object code example

Example 1: javascript loop through object

Object.entries(obj).forEach(
    ([key, value]) => console.log(key, value)
);

Example 2: loop through javascript object

var p = {
    "p1": "value1",
    "p2": "value2",
    "p3": "value3"
};

for (var key in p) {
    if (p.hasOwnProperty(key)) {
        console.log(key + " -> " + p[key]);
    }
}