JavaScript symbols for-in loop - Coding Blast - www.codingblast.com

symbols-javascript-for-in.js

let symbol1 = Symbol();
let symbol2 = Symbol();

var obj = {
  a: 13,
  [symbol1]: 5,
  [symbol2]: 11
};

let props = [];

for(let prop in obj) {  
    props.push(prop);
}

console.log(props); // ["a"]