feat(last): add last function (#207)

👍

Author: Kent C. Dodds

src/index.js

@@ -75,6 +75,7 @@ import curry from './curry'
 import textJustification from './textJustification'
 import removeProperty from './removeProperty'
 import temperatureConverter from './temperatureConverter'
+import last from './last'
 
 export {
   reverseArrayInPlace,
@@ -154,4 +155,5 @@ export {
   removeProperty,
   dec2hex,
   temperatureConverter,
+  last,
 }

src/last.js

@@ -0,0 +1,11 @@
+export default last
+
+/**
+ * This method will perform addition operation.
+ *
+ * @param {Array} array - the array
+ * @return {*} - last item in the array
+ */
+function last(array) {
+  return array[array.length - 1]
+}

test/last.test.js

@@ -0,0 +1,8 @@
+import test from 'ava'
+import {last} from '../src'
+
+test('gets the last item from an array', t => {
+  const array = [1, 2, 3]
+  const lastItem = last(array)
+  t.deepEqual(lastItem, 3)
+})