diff --git a/JustDevRae/Queue/card_bundle.js b/JustDevRae/Queue/card_bundle.js
new file mode 100644
index 0000000..1db6617
--- /dev/null
+++ b/JustDevRae/Queue/card_bundle.js
@@ -0,0 +1,15 @@
+function solution(cards1, cards2, goal) {
+  var answer = "";
+  for (let word of goal) {
+    if (word == cards1[0]) {
+      cards1.shift();
+    } else if (word == cards2[0]) {
+      cards2.shift();
+    } else {
+      answer = "No";
+      break;
+    }
+  }
+
+  return (answer = "Yes");
+}
diff --git a/JustDevRae/Queue/find_point_position.js b/JustDevRae/Queue/find_point_position.js
new file mode 100644
index 0000000..4f16fad
--- /dev/null
+++ b/JustDevRae/Queue/find_point_position.js
@@ -0,0 +1,10 @@
+function solution(dot) {
+  var answer = 0;
+
+  if (dot[0] > 0 && dot[1] > 0) answer = 1;
+  if (dot[0] < 0 && dot[1] > 0) answer = 2;
+  if (dot[0] < 0 && dot[1] < 0) answer = 3;
+  if (dot[0] > 0 && dot[1] < 0) answer = 4;
+
+  return answer;
+}
diff --git a/JustDevRae/Queue/login_success.js b/JustDevRae/Queue/login_success.js
new file mode 100644
index 0000000..c3ccabc
--- /dev/null
+++ b/JustDevRae/Queue/login_success.js
@@ -0,0 +1,16 @@
+function solution(id_pw, db) {
+  var answer = "";
+  for (let i = 0; i < db.length; i++) {
+    if (id_pw[0] === db[i][0]) {
+      if (id_pw[1] === db[i][1]) {
+        answer = "login";
+        break;
+      }
+      answer = "wrong pw";
+      break;
+    } else {
+      answer = "fail";
+    }
+  }
+  return answer;
+}
diff --git a/JustDevRae/Queue/make_hamburger.js b/JustDevRae/Queue/make_hamburger.js
new file mode 100644
index 0000000..bda6c56
--- /dev/null
+++ b/JustDevRae/Queue/make_hamburger.js
@@ -0,0 +1,20 @@
+function solution(ingredient) {
+  const burger = [];
+  let answer = 0;
+  for (let i of ingredient) {
+    burger.push(i);
+
+    if (
+      burger.length >= 4 &&
+      burger[burger.length - 4] === 1 &&
+      burger[burger.length - 3] === 2 &&
+      burger[burger.length - 2] === 3 &&
+      burger[burger.length - 1] === 1
+    ) {
+      burger.splice(burger.length - 4, 4);
+      answer++;
+    }
+  }
+
+  return answer;
+}
diff --git a/JustDevRae/Queue/pair_count.js b/JustDevRae/Queue/pair_count.js
new file mode 100644
index 0000000..19f39ac
--- /dev/null
+++ b/JustDevRae/Queue/pair_count.js
@@ -0,0 +1,13 @@
+function solution(n) {
+  var answer = 0;
+
+  // 1부터 n까지 숫자를 확인
+  for (let i = 1; i <= n; i++) {
+    // i가 n의 약수인지 확인
+    if (n % i === 0) {
+      // i가 n의 약수인지 확인
+      answer++;
+    }
+  }
+  return answer;
+}
diff --git a/JustDevRae/Queue/process.js b/JustDevRae/Queue/process.js
new file mode 100644
index 0000000..fcc601e
--- /dev/null
+++ b/JustDevRae/Queue/process.js
@@ -0,0 +1,20 @@
+function solution(priorities, location) {
+  var answer = 0;
+  const queue = priorities.map((priority, index) => ({ priority, index }));
+
+  while (queue.length > 0) {
+    const current = queue.shift();
+
+    const highPriority = queue.some((item) => item.priority > current.priority);
+
+    if (highPriority) {
+      queue.push(current);
+    } else {
+      answer++;
+
+      if (current.index === location) {
+        return answer;
+      }
+    }
+  }
+}
diff --git a/JustDevRae/Stack/control_Z.js b/JustDevRae/Stack/control_Z.js
new file mode 100644
index 0000000..44fba87
--- /dev/null
+++ b/JustDevRae/Stack/control_Z.js
@@ -0,0 +1,15 @@
+function solution(s) {
+  var answer = 0;
+  let Z = 0;
+  const controlArray = s.split(" ");
+  for (let i = 0; i < controlArray.length; i++) {
+    if (controlArray[i] == "Z") {
+      answer -= Z;
+      continue;
+    }
+    answer += Number(controlArray[i]);
+    Z = Number(controlArray[i]);
+  }
+
+  return answer;
+}
diff --git a/JustDevRae/Stack/crane_claw_game.js b/JustDevRae/Stack/crane_claw_game.js
new file mode 100644
index 0000000..ab28cd5
--- /dev/null
+++ b/JustDevRae/Stack/crane_claw_game.js
@@ -0,0 +1,23 @@
+function solution(board, moves) {
+  let answer = 0;
+  const stack = [];
+
+  for (let move of moves) {
+    for (let i = 0; i < board.length; i++) {
+      if (board[i][move - 1] !== 0) {
+        let doll = board[i][move - 1];
+        board[i][move - 1] = 0;
+
+        if (stack.length > 0 && stack[stack.length - 1] === doll) {
+          stack.pop();
+          answer += 2;
+        } else {
+          stack.push(doll);
+        }
+        break;
+      }
+    }
+  }
+
+  return answer;
+}
diff --git a/JustDevRae/Stack/dart_game.js b/JustDevRae/Stack/dart_game.js
new file mode 100644
index 0000000..7b67c10
--- /dev/null
+++ b/JustDevRae/Stack/dart_game.js
@@ -0,0 +1,41 @@
+function solution(dartResult) {
+  var answer = 0;
+  const dartResultArray = dartResult.match(/\d+|[SDT]|\#|\*/g);
+  const stack = [];
+  let value;
+  
+  for (str of dartResultArray) {
+    if (str === "S") {
+      value = stack.pop();
+      stack.push(value);
+    } else if (str === "D") {
+      value = stack.pop();
+      stack.push(value * value);
+    } else if (str === "T") {
+      value = stack.pop();
+      stack.push(value * value * value);
+    } else if (str === "*") {
+      let firtPopValue = stack.pop();
+      firtPopValue *= 2;
+      let secondPopValue = stack.pop();
+      if (secondPopValue === undefined) {
+        stack.push(firtPopValue);
+      } else {
+        secondPopValue *= 2;
+        stack.push(secondPopValue);
+        stack.push(firtPopValue);
+      }
+    } else if (str === "#") {
+      value = stack.pop();
+      stack.push(value * -1);
+    } else {
+      stack.push(Number(str));
+    }
+  }
+
+  for (element of stack) {
+    answer += element;
+  }
+
+  return answer;
+}
diff --git a/JustDevRae/Stack/reverse_string.js b/JustDevRae/Stack/reverse_string.js
new file mode 100644
index 0000000..003d086
--- /dev/null
+++ b/JustDevRae/Stack/reverse_string.js
@@ -0,0 +1,10 @@
+function solution(my_string) {
+  var answer = "";
+  const string = [...my_string];
+
+  for (let i = 0; i < my_string.length; i++) {
+    answer += string.pop();
+  }
+
+  return answer;
+}
diff --git a/JustDevRae/Stack/valid_parentheses.js b/JustDevRae/Stack/valid_parentheses.js
new file mode 100644
index 0000000..14767b2
--- /dev/null
+++ b/JustDevRae/Stack/valid_parentheses.js
@@ -0,0 +1,16 @@
+function solution(s) {
+  const stack = [];
+  for (const c of s) {
+    if (c === "(") {
+      stack.push(c);
+    } else if (c === ")") {
+      if (stack.length === 0) {
+        continue;
+      } else {
+        stack.pop();
+      }
+    }
+  }
+
+  return stack.length === 0;
+}