orOperatorVsIf.js

/* || operator vs. If */
const hero = { name: 'Wonder Woman', age: 0, address: null };

// As || operator
const getOrOperator = ({ name, age, address }) => (
  address   // hero.address is falsy 
  || age    // hero.age is falsy 
  || name   // hero.name is truthy so short-circuits and is returned
  || 'hero' // default
);

// As If statements
const getIf = ({ name, age, address }) => {
    if (address) {
        return address;
    }
    if (age) {
        return age;
    }
    if (name) { 
        return name; // hero.name is truthy it is returned
    } 
    return 'hero';
};

console.log(getOrOperator(hero)); // => Wonder Woman
console.log(getIf(hero)); // => Wonder Woman