常建东

js/1.js

@@ -4,6 +4,14 @@
  * @returns {any[]}
  */
 function flatten(arr) {
-
+  let result = []
+  for (let num of arr) {
+    if (Array.isArray(num)) {
+      result.push(...flatten(num))
+    } else {
+      result.push(num)
+    }
+  }
+  return result
 }
-console.log(flatten([[1,2,3,4],[1,[1,[1]]]])==[1,2,3,4,1,1,1])
+console.log(flatten([[1, 2, 3, 4], [1, [1, [1]]]]))

js/2.js

@@ -3,7 +3,11 @@
  * @param {number} size
  * @return {Array}
  */
-var chunk = function(arr, size) {
-
+var chunk = function (arr, size) {
+  let temp = []
+  for (let i = 0; i < arr.length; i += size) {
+    temp.push(arr.slice(i, i + size))
+  }
+  return temp
 };
-console.log(chunk([1,2,3,4,5], 1)==[[1],[2],[3],[4],[5]])
+console.log(chunk([1, 2, 3, 4, 5], 1) == [[1], [2], [3], [4], [5]])

js/3.js

@@ -4,5 +4,13 @@
  * @return {boolean}
  */
 function hasStraightFlush(arr) {
-    // 返回 true 或 false
+    for (let card of arr) {
+        const kk = card % 13;
+        const rank = Math.floor(card / 13);
+        let isStraightflush = true
+
+
+
+
+    }
 }