JavaScriptCodeSnippets/spread.js at master · rnagasudhakar/JavaScriptCodeSnippets · GitHub

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const appData = {
  user: {
    id: 101,
    name: "John Doe",
    preferences: {
      theme: "dark",
      notifications: {
        email: true,
        sms: false,
        push: {
          enabled: true,
          sound: "chime",
          times: ["08:00", "20:00"],
        },
      },
    },
    address: {
      billing: {
        line1: "123 Main St",
        city: "New York",
        zip: "10001",
      },
      shipping: {
        line1: "456 Market Ave",
        city: "San Francisco",
        zip: "94105",
      },
    },
  },
  cart: {
    items: [
      {
        id: "p1",
        name: "Wireless Mouse",
        qty: 2,
        price: 25.5,
        metadata: {
          warranty: "1 year",
          availability: {
            inStock: true,
            warehouse: "LA-2",
          },
        },
      },
      {
        id: "p2",
        name: "Mechanical Keyboard",
        qty: 1,
        price: 89.99,
        metadata: {
          warranty: "2 years",
          availability: {
            inStock: false,
            warehouse: "NY-1",
          },
        },
      },
    ],
    coupon: {
      code: "NEWUSER10",
      discount: 10,
      applied: true,
    },
  },
  settings: {
    version: "1.4.2",
    features: {
      wishlist: true,
      multiAddress: true,
      recommendations: {
        enabled: true,
        sources: ["browsingHistory", "similarUsers"],
      },
    },
  },
  name: "revathi",
};

const updatedObject = {
  ...appData,
  user: {
    ...appData.user,
    name: "sudhakar",
  },
  name: "sudha",
};

console.log(updatedObject);

console.log(appData);