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function addToIndexedDB(databaseName, storeName, item) {
  return new Promise((resolve, reject) => {
    const request = indexedDB.open(databaseName);
 
    request.onupgradeneeded = (event) => {
      const db = event.target.result;
      if (!db.objectStoreNames.contains(storeName)) {
        db.createObjectStore(storeName, { keyPath: "id" });
      }
    };
 
    request.onsuccess = (event) => {
      const db = event.target.result;
      const transaction = db.transaction(storeName, "readwrite");
      const store = transaction.objectStore(storeName);
 
      const addRequest = store.add(item);
 
      addRequest.onsuccess = () => resolve(item); // return item object on success
      addRequest.onerror = () => reject(addRequest.error);
    };
 
    request.onerror = () => reject(request.error);
  });
}
 
addItemToIndexedDB("myDatabase", "users", { id: 1, name: "John", age: 25 })
  .then(console.log) // { id: 1, name: "John", age: 25 }
  .catch(console.error);

Add Item to IndexedDB

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function chunkArray(array, size) {
  return Array.from({ length: Math.ceil(array.length / size) }, (_, i) =>
    array.slice(i * size, i * size + size)
  );
}
 
const numbers = [1, 2, 3, 4, 5, 6, 7];
chunkArray(numbers, 3); // [[1, 2, 3], [4, 5, 6], [7]]

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Awesome work, we should add this.

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function chunkArray(array, size) {
  return Array.from({ length: Math.ceil(array.length / size) }, (_, i) =>
    array.slice(i * size, i * size + size)
  );
}
 
const numbers = [1, 2, 3, 4, 5, 6, 7];
chunkArray(numbers, 3); // [[1, 2, 3], [4, 5, 6], [7]]

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