From cae823bf48e9087fd525fc4d22ab5fb117f41d20 Mon Sep 17 00:00:00 2001
From: koronya <koronya@hanmail.net>
Date: Sat, 16 May 2026 05:02:39 +0900
Subject: [PATCH] [JS][7kyu] The dropWhile Function

---
 .../7kyu/the-drop-while-function/koronya.js   | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 codewars/7kyu/the-drop-while-function/koronya.js

diff --git a/codewars/7kyu/the-drop-while-function/koronya.js b/codewars/7kyu/the-drop-while-function/koronya.js
new file mode 100644
index 000000000..37375369b
--- /dev/null
+++ b/codewars/7kyu/the-drop-while-function/koronya.js
@@ -0,0 +1,26 @@
+// [JS][7kyu] The dropWhile Function
+// the-drop-while-function
+// https://www.codewars.com/kata/54f9c37106098647f400080a/train/javascript
+
+const dropWhile = (array, predicate) => {
+  let leftSize = 0
+  let index = 0
+  const arrayLength = array.length
+  while (index < arrayLength) {
+    if (predicate(array[index])) {
+      leftSize += 1
+      index += 1
+    } else {
+      break
+    }
+  }
+
+  return array.slice(leftSize)
+}
+
+const isEven = (num) => {
+  return num % 2 === 0
+}
+const seq = [2, 4, 6, 8, 1, 2, 5, 4, 3, 2]
+dropWhile(seq, isEven) // -> [1,2,5,4,3,2]
+dropWhile([72, -45, -5, -41, 86, 75, -83, -45, 48, -91, 81, -5, -61, 97, 78, 18, 83, 0, -1], (num) => num % 2 !== 0)