composition is awesome

Author: emkis

composition/index.js

@@ -0,0 +1,24 @@
+function composition (...callbacks) {
+  return function (value) {
+    return callbacks.reduce((accumulator, callback) => {
+      return callback(accumulator)
+    }, value)
+  }
+}
+
+function lowercaseText (text) {
+ return text.toLowerCase()
+}
+
+function addEmojis (text) {
+  return `${text} 🦆🐖🐄`
+}
+
+function separateText (text) {
+  return text.split('').join(' ')
+}
+
+const makeNiceText = composition(lowercaseText, addEmojis, separateText)
+
+console.log( makeNiceText('Hello there') )
+console.log( makeNiceText('Composition is AWESOME') )