feat(temperatureConvert): add function (#204)

* WIP: problem with test

* WIP: problem with test
Closes #203

Author: kam773

src/index.js

@@ -74,6 +74,7 @@ import debounce from './debounce'
 import curry from './curry'
 import textJustification from './textJustification'
 import removeProperty from './removeProperty'
+import temperatureConverter from './temperatureConverter'
 
 export {
   reverseArrayInPlace,
@@ -152,4 +153,5 @@ export {
   textJustification,
   removeProperty,
   dec2hex,
+  temperatureConverter,
 }

src/temperatureConverter.js

@@ -0,0 +1,13 @@
+export default temperatureConverter
+/**
+ * Original Source: https://stackoverflow.com/questions/15122347/
+ *
+ * This function gets temperature in fahrenheit and converts it into celsius
+ *
+ * @param {Number} fahrenheit  - Temperature in fahrenheit
+ * @return {Number} - Temperature in celsius
+ */
+function temperatureConverter(fahrenheit) {
+  const celsius = (fahrenheit - 32) * 5 / 9
+  return celsius
+}

test/temperatureConverter.test.js

@@ -0,0 +1,10 @@
+import test from 'ava'
+import {temperatureConverter} from '../src'
+
+test('converts temperature', t => {
+  const number = 78
+  const expected = (number - 32) * 5/9
+  const actual = temperatureConverter(number)
+  t.is(actual, expected)
+
+})