Object Spread

Build a new object by spreading fields.

spread_object.js

const stock = 3;
const summary = JSON.stringify({
  item: "pen",
  ...{ stock: stock },
});
const hasStock = stock > 0;

console.log("summary=" + summary);
console.log("hasStock=" + hasStock);

object-spread Object spread copies fields into a new object literal. Later fields can add or replace values while keeping the result explicit.