diff --git a/.eslintignore b/.eslintignore
index b860b9a..c2658d7 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -1,2 +1 @@
-Exercises/
node_modules/
diff --git a/.prettierrc b/.prettierrc
new file mode 100644
index 0000000..544138b
--- /dev/null
+++ b/.prettierrc
@@ -0,0 +1,3 @@
+{
+ "singleQuote": true
+}
diff --git a/Exercises/1-pipe.js b/Exercises/1-pipe.js
index 14e8909..fd9be12 100644
--- a/Exercises/1-pipe.js
+++ b/Exercises/1-pipe.js
@@ -1,5 +1,12 @@
'use strict';
-const pipe = (...fns) => (x) => null;
+const pipe = (...fns) => {
+ fns.forEach((fn) => {
+ if (typeof fn !== 'function') {
+ throw new Error('Type of fn is not a function');
+ }
+ });
+ return (x) => fns.reduce((v, f) => f(v), x);
+};
module.exports = { pipe };
diff --git a/Exercises/2-compose.js b/Exercises/2-compose.js
index 8f8b77b..4e62b82 100644
--- a/Exercises/2-compose.js
+++ b/Exercises/2-compose.js
@@ -1,5 +1,25 @@
'use strict';
-const compose = (...fns) => (x) => null;
+const compose = (...fns) => {
+ const handlers = [];
+ const fn = (x) => {
+ if (fns.length === 0) return x;
+ const last = fns.length - 1;
+ let res = x;
+ try {
+ for (let i = last; i >= 0; i--) {
+ res = fns[i](res);
+ }
+ } catch (error) {
+ res = undefined;
+ handlers.forEach((handler) => handler(error));
+ }
+ return res;
+ };
+ fn.on = (name, handler) => {
+ if (name === 'error') handlers.push(handler);
+ };
+ return fn;
+};
module.exports = { compose };
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