javascript object call one key code example

Example 1: get keys wher value is true in object in javascript

var obj = {1001: true, 1002: false};

var keys = Object.keys(obj);

var filtered = keys.filter(function(key) {
    return obj[key]
});

Example 2: object.keys

const object1 = {
  a: 'somestring',
  b: 42,
  c: false
};

console.log(Object.keys(object1));
// expected output: Array ["a", "b", "c"]