Modern JS ES6+ features - Spread Operator

spread_operator.js

array1 = [1, 2, 3, 5];
object1 = {
  key1: "value1",
  key2: "value2",
};

//Spread operator in array
array2 = [10, ...array1];
console.log(array2);

//Spread operator in object
object2 = {
  key3: "value3",
  ...object1,
};
console.log(object2);