Object.entries()

The Object.entries() method returns an array of a given object's own enumerable string-keyed property [key, value] pairs, in the same order as that provided by a for...in loop. (The only important difference is that a for...in loop enumerates properties in the prototype chain as well).

The order of the array returned by Object.entries() does not depend on how an object is defined. If there is a need for certain ordering, then the array should be sorted first, like Object.entries(obj).sort((a, b) => b[0].localeCompare(a[0]));.

 

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

for (let [key, value] of Object.entries(object1)) {
  console.log(`${key}: ${value}`);
}

// expected output:
// "a: somestring"
// "b: 42"
// order is not guaranteed

 

Object.entries() returns an array whose elements are arrays corresponding to the enumerable string-keyed property [key, value] pairs found directly upon object. The ordering of the properties is the same as that given by looping over the property values of the object manually.

 

 

 

 

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries

Object.entries()