refactor(core): CORE-01 migrate utility contracts to TypeScript

test/types/utils-source.ts

@@ -0,0 +1,27 @@
+import { errorHandle, silencePromise } from '../../packages/artplayer/src/utils/error'
+import { getExt } from '../../packages/artplayer/src/utils/file'
+import { def, has, mergeDeep } from '../../packages/artplayer/src/utils/property'
+import { debounce, sleep, throttle } from '../../packages/artplayer/src/utils/time'
+
+const pending: Promise<void> = sleep()
+const extension: string = getExt('video.mp4')
+const object = { count: 1 }
+const same: typeof object = def(object, Symbol('metadata'), { value: 'value' })
+const owns: boolean = has(object, 'count')
+const merged: { count: number } = mergeDeep(object, { count: 2 })
+const checked: typeof object = errorHandle(object, 'present')
+const handled: Promise<number | undefined> = silencePromise(Promise.resolve(2))
+function callback(this: { count: number }, increment: number) {
+  return this.count + increment
+}
+for (const schedule of [debounce(callback, 10), throttle(callback, 10)]) {
+  const result: void = schedule.call(object, 1)
+  // @ts-expect-error Scheduled callbacks preserve argument types.
+  schedule.call(object, '1')
+  // @ts-expect-error Scheduled callbacks preserve receiver types.
+  schedule.call({ count: '1' }, 1)
+  // @ts-expect-error The callback result is not returned synchronously.
+  const wrong: number = schedule.call(object, 1)
+  void [result, wrong]
+}
+void [pending, extension, same, owns, merged, checked, handled]