Create Arrow_functions.js

Author: MannyP31

Hackerrank solutions/10 days of js/Arrow_functions.js

@@ -0,0 +1,49 @@
+'use strict';
+
+process.stdin.resume();
+process.stdin.setEncoding('utf-8');
+
+let inputString = '';
+let currentLine = 0;
+
+process.stdin.on('data', inputStdin => {
+    inputString += inputStdin;
+});
+
+process.stdin.on('end', _ => {
+    inputString = inputString.trim().split('\n').map(string => {
+        return string.trim();
+    });
+    
+    main();    
+});
+
+function readLine() {
+    return inputString[currentLine++];
+}
+
+/*
+ * Modify and return the array so that all even elements are doubled and all odd elements are tripled.
+ * 
+ * Parameter(s):
+ * nums: An array of numbers.
+ */
+function modifyArray(nums) {
+    var something=function(n){
+        if(n%2==0)
+           return n*2;
+        else
+           return n*3;
+        
+    }
+    var newArray=nums.map(something);
+    return newArray;
+}
+
+
+function main() {
+    const n = +(readLine());
+    const a = readLine().split(' ').map(Number);
+    
+    console.log(modifyArray(a).toString().split(',').join(' '));
+}