valid-parentheses solution

Author: Moonjonghoo

valid-parentheses/moonjonghoo.js

@@ -0,0 +1,18 @@
+/**
+ * @param {string} s
+ * @return {boolean}
+ */
+var isValid = function (s) {
+  let object = { ")": "(", "}": "{", "]": "[" };
+  let stack = [];
+  for (let char of s) {
+    if (char === "(" || char === "{" || char === "[") {
+      stack.push(char);
+    } else {
+      if (stack.length === 0 || stack.pop() !== object[char]) {
+        return false;
+      }
+    }
+  }
+  return stack.length === 0;
+};