reverse

Author: Fathma

2dArray.js

@@ -0,0 +1,42 @@
+const fs = require('fs')
+// Complete the reverseArray function below.
+function reverseV1(a) {
+    let reversed = []
+    for (let i = a.length - 1; i > -1; i--) {
+        reversed.push(a[i])
+    }
+    return reversed
+}
+
+const reverseArray = (a) => {
+    let array_middle_point = Math.round((a.length - 1) / 2)
+
+    for (let i = 0; i < array_middle_point; i++) {
+        let f_index = a[i]
+        let l_index = a[a.length - 1 - i]
+        a[i] = l_index
+        a[a.length - 1 - i] = f_index
+    }
+    return a
+}
+
+
+
+// const file_gen = () => {
+//     for (let i = 0; i < 1000; i++) {
+//         fs.appendFileSync('array_file.txt', i)
+//     }
+// }
+
+const file_gen = () => {
+    let arr = []
+    for (let i = 0; i < 1000; i++) {
+        arr.push(i)
+    }
+    return arr
+}
+
+console.log(reverseArray(file_gen()))
+
+
+