nostr-tools/helpers.ts

22 lines
784 B
TypeScript

import { verifiedSymbol, type Event, type Nostr, VerifiedEvent } from './core.ts'
export async function yieldThread() {
return new Promise<void>(resolve => {
const ch = new MessageChannel()
const handler = () => {
// @ts-ignore (typescript thinks this property should be called `removeListener`, but in fact it's `removeEventListener`)
ch.port1.removeEventListener('message', handler)
resolve()
}
// @ts-ignore (typescript thinks this property should be called `addListener`, but in fact it's `addEventListener`)
ch.port1.addEventListener('message', handler)
ch.port2.postMessage(0)
ch.port1.start()
})
}
export const alwaysTrue: Nostr['verifyEvent'] = (t: Event): t is VerifiedEvent => {
t[verifiedSymbol] = true
return true
}