Merge pull request #280 from fusunx/master

0055.跳跃游戏.md Javascript

problems/0055.跳跃游戏.md

@@ -141,7 +141,20 @@ func canJUmp(nums []int) bool {
 }
 ```
 
-
+Javascript:
+```Javascript
+var canJump = function(nums) {
+    if(nums.length === 1) return true
+    let cover = 0
+    for(let i = 0; i <= cover; i++) {
+        cover = Math.max(cover, i + nums[i])
+        if(cover >= nums.length - 1) {
+            return true
+        }
+    }
+    return false
+};
+```
 
 
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