tcrowe · February 1, 2020 20:20 · Feb 1, 2020
diff --git a/object-ification-of-promise.js b/object-ification-of-promise.js
@@ -0,0 +1,39 @@
+
+/**
+ * Object-ification of a promise result
+ * @method to
+ * @param {promise} p
+ * @returns {array}
+ */
+const to = p =>
+  p.then(res => ({ err: null, res }))
+    .catch(err => ({ err }));
+
+/**
+ * Test success promise
+ * @returns {promise}
+ */
+const test1 = async () => "ok";
+
+/**
+ * Test fail promise
+ * @returns {promise}
+ */
+const test2 = async () => { throw new Error("not ok =["); };
+
+async function start() {
+  // 💰
+  var { err, res } = await to(test1());
+  console.log("err", err) // null
+  console.log("res", res) // "ok"
+
+  var { err, res } = await to(test2());
+  // 💰
+  console.log("err", err) // Error: not ok
+  console.log("res", res) // undefined
+}
+
+console.log(start()); // Promise { <pending> }
+
+// more reading
+// https://blog.grossman.io/how-to-write-async-await-without-try-catch-blocks-in-javascript/