Dynamic Object Properties

    /***
     * Dynamic Object properties using square brackets
     */

    let beverage = 'Beer';
    
    const myObj = {
      a: 1,
      b: 2,
      c: 3,
      food: 'cheese',
      propName: 'cheese',
      beverage: 'Heineken', // beverage: 'Heineken'
      [beverage]: 'corona', // Beer: 'corona'
    };
    
    let addProp = (obj, propName, propValue) => {
      // obj.food = 'cheese';
      obj[propName] = propValue;
      obj.propName = propValue;
    };
    addProp(myObj, 'food', 'cheese');