[27] 移除元素

src/leecode/javascript/27.移除元素.js

@@ -0,0 +1,29 @@
+/*
+ * @lc app=leetcode.cn id=27 lang=javascript
+ *
+ * [27] 移除元素
+ */
+
+// @lc code=start
+/**
+ * @param {number[]} nums
+ * @param {number} val
+ * @return {number}
+ */
+var removeElement = function (nums, val) {
+  if (!nums) {
+    return 0;
+  }
+  let size = nums.length;
+  for (let i = 0; i < size; i++) {
+    if (nums[i] == val) {
+      let t = nums[size - 1];
+      nums[i] = nums[size - 1];
+      nums[size - 1] = t;
+      size--;
+      i--;
+    }
+  }
+  return size;
+};
+// @lc code=end