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@goofmint

goofmint/index.js

Created May 15, 2018
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let db;
let version = 4;
const request = indexedDB.open("database", version);
request.onerror = function(event) {
alert("IndexedDB が使えません");
};
request.onupgradeneeded = function(event) {
db = event.target.result;
let txn = event.target.transaction;
console.log(txn.objectStoreNames);
// -> DOMStringList {0: "items", 1: "products", length: 2}
};
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