Add IDBFactory.databases() method to lib.DOM

[nathanblair]

Search Terms

idbfactory databases

Suggestion

TypeScript/lib/lib.dom.d.ts

Line 9386 in fa3173f

interface IDBFactory {

Should be adjusted to include the databases() method specified in:

• https://developer.mozilla.org/en-US/docs/Web/API/IDBFactory/databases
• https://w3c.github.io/IndexedDB/#dom-idbfactory-databases

Use Cases

Getting a list of all IndexedDB databases controlled by a window

Examples

console.log(`Removing obselete databases...`)
const databases = await indexedDB.databases()
for (const eachDatabase in databases) {
  if (eachDatabase.name !== DB_NAME) indexedDB.deleteDatabase(eachDatabase.name)
}

Checklist

My suggestion meets these guidelines:

• This wouldn't be a breaking change in existing TypeScript/JavaScript code
• This wouldn't change the runtime behavior of existing JavaScript code
• This could be implemented without emitting different JS based on the types of the expressions
• This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, etc.)
• This feature would agree with the rest of TypeScript's Design Goals.

[thomaschampagne]

Indeed it's missing. I had to do this as temporary workaround

declare global {
    interface IDBFactory {
        databases: () => Promise<{ name: string, version: number }[]>;
    }
}

[nathanblair]

It appears there was an issue opened related to this already, #37317. If you feel it is appropriate, @RyanCavanaugh , feel free to close it and defer to that issue.

It looks like a PR was made by @fritzschoff, but they made changes to some generated files and the PR ended up closed without merge.

I've got the changes done myself to the lib/dom file (not the generated one), but it seems this:

a) would need coordinated with the TS-Generated repo? To get the generated declaration files updated from the lib/dom file changes made in my local
b) is being held up potentially for reasons related to how early-adoption it is. I can confirm it works in FF v75, at least. And definitely Chrome/Chromium.

I'll throw up my PR nonetheless and if no one likes it yet, feel free to cut it down :D

[fritzschoff]

I guess Firefox is the bottleneck here

[nathanblair]

It looks like my PR got auto-closed for a similar reason as yours, @fritzschoff. Even though I didn't even touch the /src/lib/.generated files?

So, 🤷 I'm over it.

[t3chguy]

This got added in 9ebe11c

[jakebailey]

As noted above, this was fixed in #44684.