day 08 task complete

Author: Sanchitbajaj02

day08/leetcode2629.js

@@ -0,0 +1,21 @@
+// 2629. Function Composition
+// URL -> https://leetcode.com/problems/function-composition
+
+/**
+ * @param {Function[]} functions
+ * @return {Function}
+ */
+var compose = function (functions) {
+
+  return function (x) {
+    for (let i = functions.length - 1; i >= 0; i--) {
+      x = functions[i](x);
+    }
+    return x;
+  }
+};
+
+/**
+ * const fn = compose([x => x + 1, x => 2 * x])
+ * fn(4) // 9
+ */