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node_modules/promise-make-counter/src/index.ts

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+
+/* IMPORT */
+
+import makeNakedPromise from 'promise-make-naked';
+import type {Result} from './types';
+
+/* MAIN */
+
+const makeCounterPromise = (): Result => {
+
+  const {promise, resolve, isPending} = makeNakedPromise<void> ();
+
+  let counter = 0;
+
+  const increment = (): void => {
+
+    counter += 1;
+
+  };
+
+  const decrement = (): void => {
+
+    counter -= 1;
+
+    if ( counter ) return;
+
+    resolve ();
+
+  };
+
+  const init = (): void => { // Accounting for no increment/decrement calls
+
+    increment ();
+
+    queueMicrotask ( decrement );
+
+  };
+
+  init ();
+
+  return { promise, isPending, increment, decrement };
+
+};
+
+/* EXPORT */
+
+export default makeCounterPromise;
+export type {Result};