feature(try-to-catch) promise -> async

Author: coderaiser

.babelrc

@@ -1,17 +1,13 @@
 'use strict';
 
-const success = (a) => [null, a];
-const fail = (a) => [a];
-
-const noArg = (f, a) => () => f(...a);
-
-module.exports = (fn, ...args) => {
+module.exports = async (fn, ...args) => {
     check(fn);
 
-    return Promise.resolve()
-        .then(noArg(fn, args))
-        .then(success)
-        .catch(fail);
+    try {
+        return [null, await fn(...args)];
+    } catch(e) {
+        return [e];
+    }
 };
 
 function check(fn) {

lib/try-to-catch.js

@@ -29,9 +29,6 @@
     "then"
   ],
   "devDependencies": {
-    "@babel/cli": "^7.0.0",
-    "@babel/core": "^7.0.0",
-    "@babel/preset-env": "^7.0.0",
     "coveralls": "^3.0.0",
     "eslint": "^6.1.0",
     "eslint-plugin-node": "^11.0.0",

package.json

@@ -4,10 +4,10 @@ const {promisify} = require('util');
 const test = require('supertape');
 const tryToCatch = require('..');
 
-test('try-to-catch: no args', (t) => {
-    const fn = () => tryToCatch();
+test('try-to-catch: no args', async (t) => {
+    const [e] = await tryToCatch(tryToCatch);
 
-    t.throws(fn, /fn should be a function!/, 'should throw');
+    t.equal(e.message, 'fn should be a function!', 'should throw');
     t.end();
 });