diff --git a/Exercises/1-pipe.js b/Exercises/1-pipe.js
index d09882a..37ee6af 100644
--- a/Exercises/1-pipe.js
+++ b/Exercises/1-pipe.js
@@ -1,5 +1,10 @@
'use strict';
-const pipe = (...fns) => x => null;
+const pipe = (...fns) => {
+ fns.forEach(x => {
+ if (typeof x !== 'function') throw new Error('arg must be a function');
+ });
+ return num => fns.reduce((val, fn) => fn(val), num);
+};
module.exports = { pipe };
diff --git a/Exercises/2-compose.js b/Exercises/2-compose.js
index 368e521..313baf8 100644
--- a/Exercises/2-compose.js
+++ b/Exercises/2-compose.js
@@ -1,5 +1,21 @@
'use strict';
-const compose = (...fns) => x => null;
+const compose = (...fns) => {
+ const events = {};
+ const fn = num => fns.reverse().reduce((val, f) => {
+ try {
+ if (typeof val === 'undefined') return undefined;
+ return f(val);
+ } catch (e) {
+ const err = events['error'];
+ if (err) err(e);
+ return undefined;
+ }
+ }, num);
+ fn.on = (event, callback) => {
+ events[event] = callback;
+ };
+ return fn;
+};
module.exports = { compose };
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