update arrayToHtmlList to more high efficiency

2018-05-07 09:35:03 +08:00
parent b443b0fdb7
commit b5a8e3987f
1 changed files with 3 additions and 2 deletions
--- a/snippets/arrayToHtmlList.md
+++ b/snippets/arrayToHtmlList.md
@ -5,8 +5,9 @@ Converts the given array elements into `<li>` tags and appends them to the list
 Use `Array.map()` and `document.querySelector()` to create a list of html tags.

 ```js
-const arrayToHtmlList = (arr, listID) =>
-  arr.map(item => (document.querySelector('#' + listID).innerHTML += `<li>${item}</li>`));
+ const arrayToHtmlList = (arr, listID) =>
+  (el => (el = document.querySelector('#' + listID), 
+    el.innerHTML += arr.map(item => `<li>${item}</li>`).join('')))()
 ```

 ```js