5 JavaScript Concepts You HAVE TO KNOW

 

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Mise à niveau

Mise à niveau

DS

 // //dessinez le résultat en mémoire

const people = [

  {

    firstName: "John",

    lastName: "Doe",

    mark: 14,

    address: {

      street: "Champs Elysées",

      city: "Paris",

    },

  },

  {

    firstName: "Alice",

    lastName: "Martin",

    mark: 18,

    address: {

      street: "Rue de Rivoli",

      city: "Paris",

    },

  },

];

const updatedPeople = people.map(

  (person) =>

    person.firstName === "John"

      ? { ...person, mark: 16 }

      : person

);