eggheadio-github · jorissparla · Apr 19, 2017
diff --git a/src/flatten.js b/src/flatten.js
@@ -9,7 +9,8 @@ export default flatten
  * @return {Array} - The flattened array
  */
 function flatten(...args) {
-  return args.reduce(function flattenReducer(flat, toFlatten) {
-    return flat.concat(Array.isArray(toFlatten) ? flatten(...toFlatten) : toFlatten)
-  }, [])
-}
+    return args.reduce(function flattenReducer(flat, toFlatten) {
+
+        return flat.concat(Array.isArray(toFlatten) ? flatten(...toFlatten) : toFlatten)
+    }, [])
+}
diff --git a/src/index.js b/src/index.js
@@ -1,9 +1,9 @@
-
 import reduce from './reduce-to-tally'
 import flatten from './flatten'
 import getQueryStringParam from './get-query-string-param'
 import snakeToCamel from './snake-to-camel'
 import padLeft from './pad-left'
+import padRight from './pad-right'
 import randomInteger from './random-integer'
 import arrayFill from './array-fill'
 import sortObjectsArray from './sort-objects-array'
@@ -26,29 +26,30 @@ import dec2bin from './dec2bin'
 import searchAndReplace from './search-and-replace'
 
 export {
-  reduce,
-  flatten,
-  snakeToCamel,
-  getQueryStringParam,
-  padLeft,
-  randomInteger,
-  arrayFill,
-  sortObjectsArray,
-  objectValuesToString,
-  getObjectSize,
-  isArray,
-  validateEmail,
-  hex2rgb,
-  isNullOrWhitespace,
-  isToday,
-  startsWith,
-  removeDuplicates,
-  add,
-  subtract,
-  divide,
-  multiply,
-  square,
-  sum,
-  dec2bin,
-  searchAndReplace,
-}
+    reduce,
+    flatten,
+    snakeToCamel,
+    getQueryStringParam,
+    padLeft,
+    padRight,
+    randomInteger,
+    arrayFill,
+    sortObjectsArray,
+    objectValuesToString,
+    getObjectSize,
+    isArray,
+    validateEmail,
+    hex2rgb,
+    isNullOrWhitespace,
+    isToday,
+    startsWith,
+    removeDuplicates,
+    add,
+    subtract,
+    divide,
+    multiply,
+    square,
+    sum,
+    dec2bin,
+    searchAndReplace,
+}
diff --git a/src/pad-right.js b/src/pad-right.js
@@ -0,0 +1,20 @@
+export default padRight
+
+/**
+ * Original Source: http://stackoverflow.com/a/34083277/971592
+ *
+ * This method will pad the left of the given string by
+ * the given size with the given character
+ *
+ * @param {String} str - The string to pad
+ * @param {Number} size - The total size to pad
+ * @param {String} padWith - The character to use for padding
+ * @return {String} - The padded string
+ */
+function padRight(str, size, padWith) {
+    if (size <= str.length) {
+        return str
+    } else {
+        return str + Array(size - str.length + 1).join(padWith || '0')
+    }
+}
diff --git a/test/pad-right.test.js b/test/pad-right.test.js
@@ -0,0 +1,27 @@
+import test from 'ava'
+import { padRight } from '../src'
+
+test('pads left of the given string', t => {
+    const original = '123'
+    const expected = '123zz'
+    const padLength = 5
+    const padWith = 'z'
+    const actual = padRight(original, padLength, padWith)
+    t.deepEqual(actual, expected)
+})
+
+test('defaults to pad a zero', t => {
+    const original = '123'
+    const expected = '12300'
+    const padLength = 5
+    const actual = padRight(original, padLength)
+    t.deepEqual(actual, expected)
+})
+
+test('does not pad a string longer than the pad length', t => {
+    const original = '1234'
+    const expected = '1234'
+    const padLength = 3
+    const actual = padRight(original, padLength)
+    t.deepEqual(actual, expected)
+})