Update flatMap.ts

src/before.ts

@@ -13,12 +13,12 @@
  * jQuery(element).on('click', before(5, addContactToList))
  * // => Allows adding up to 4 contacts to the list.
  */
-function before(n, func) {
+export const before = (n, func) => {
     let result;
     if (typeof func !== 'function') {
         throw new TypeError('Expected a function');
     }
-    return function (...args) {
+    return  (...args) => {
         if (--n > 0) {
             result = func.apply(this, args);
         }
@@ -29,4 +29,3 @@ function before(n, func) {
     };
 }
 
-export default before;

src/capitalize.ts

@@ -14,6 +14,4 @@ import toString from './toString.js';
  * capitalize('FRED')
  * // => 'Fred'
  */
-const capitalize = (string) => upperFirst(toString(string).toLowerCase());
-
-export default capitalize;
+export default const capitalize = (string) => upperFirst(toString(string).toLowerCase());

src/flatMap.ts

@@ -21,8 +21,6 @@ import map from './map.js';
  * flatMap([1, 2], duplicate)
  * // => [1, 1, 2, 2]
  */
-function flatMap(collection, iteratee) {
-    return baseFlatten(map(collection, iteratee), 1);
-}
+export default const flatMap = (collection, iteratee) => baseFlatten(map(collection, iteratee), 1);
+
 
-export default flatMap;

src/flatMapDeep.ts

@@ -23,8 +23,4 @@ const INFINITY = 1 / 0;
  * flatMapDeep([1, 2], duplicate)
  * // => [1, 1, 2, 2]
  */
-function flatMapDeep(collection, iteratee) {
-    return baseFlatten(map(collection, iteratee), INFINITY);
-}
-
-export default flatMapDeep;
+export const flatMapDeep = (collection, iteratee) => baseFlatten(map(collection, iteratee), INFINITY);

src/flatMapDepth.ts

@@ -21,9 +21,8 @@ import map from './map.js';
  * flatMapDepth([1, 2], duplicate, 2)
  * // => [[1, 1], [2, 2]]
  */
-function flatMapDepth(collection, iteratee, depth) {
+export const flatMapDepth = (collection, iteratee, depth) => {
     depth = depth === undefined ? 1 : +depth;
     return baseFlatten(map(collection, iteratee), depth);
 }
 
-export default flatMapDepth;