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
@ -6,7 +6,8 @@ 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>${item}</li>`));
+  (el => (el = document.querySelector('#' + listID), 
+    el.innerHTML += arr.map(item => `<li>${item}</li>`).join('')))()
 ```

 ```js