Ik-12 Chubko Mykhailo labworks5 Tasks 1 to 2

Exercises/1-seq.js

@@ -1,5 +1,11 @@
 'use strict';
 
-const seq = (f) => (g) => (x) => 0;
-
+const seq = (f) => (arg) => {
+    if (typeof arg === 'number') {
+      return f(arg);
+    } else {
+      return seq((x) => f(arg(x)));
+    }
+  };
+
 module.exports = { seq };

Exercises/2-array.js

@@ -1,5 +1,25 @@
 'use strict';
 
-const array = () => null;
+const array = () => {
+    const data = []; 
+
+    return (arg) => {
+      if (typeof arg === 'number') {
+        return data[arg]; 
+      }
+
+      const method = arg.method;
+      const value = arg.value;
+
+      if (method === 'push') {
+        data.push(value); 
+        return;
+      }
+
+      if (method === 'pop') {
+        return data.pop(); 
+      }
+    };
+  };
 
 module.exports = { array };