From 6082884f45507961aa69fe49ca90efd1a4cf9b47 Mon Sep 17 00:00:00 2001
From: Anthony <team.iphone112@gmail.com>
Date: Mon, 11 Nov 2019 15:09:53 -0500
Subject: [PATCH] lab completed

---
 my-script.js | 75 +++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 66 insertions(+), 9 deletions(-)

diff --git a/my-script.js b/my-script.js
index 5ac970c..3d7855e 100644
--- a/my-script.js
+++ b/my-script.js
@@ -21,39 +21,74 @@ const greeting = (name) => {
 /**
  * Write a function called `add` that returns the sum of two numbers
  */
-
+function add ( a, b){
+  return a +b;
+}
 
 /**
  * Write a function called `subtract` that returns the difference between two numbers
  */
-
+function subtract (a, b){
+  return a -b;
+}
 
 /**
  * Write a function called `min` that returns the smaller of two numbers
  */
-
+ function min(a ,b){
+   min = Math.min(a ,b);
+   return min;
+ }
 
 /**
  * Write a function called `max` that returns the larger of two numbers
  */
-
+ function max(a ,b){
+   max = Math.max(a ,b);
+   return max;
+ }
 /**
  * Write a function called `isEven` that takes a single value and
  * returns `true` if it is even and `false` if it is odd
  */
 
-
+ function isEven (N){
+   if (2 === N){
+   return true;
+ }else if (1 === N){
+   return false;
+ }else if  (0 === N){
+   return true;
+ }else if  (N < 0){
+ N = N+2;
+ return isEven(N)
+ }else{
+   N=N-2;
+   return isEven(N);
+ }
+ }
 /**
  * Write a function called `isOdd` that takes a single value and
  * returns `false` if it is even and `true` if it is odd
  */
 
-
+ function isOdd (N){
+if (N %2 ===0){
+  return false;
+} else {
+  return true;
+}
+}
 /**
  * Write a function called `factorial` that takes a single integer and
  * returns the product of the integer and all the integers below it
  */
-
+function factorial (x){
+  if (x === 0){
+    return 1;
+  }
+  return x * factorial ( x - 1);
+}
 
 /**
  * Write a function called `oddFactorial` that takes a single integer and
@@ -61,15 +96,38 @@ const greeting = (name) => {
  * only if they are odd. If the starting number is even, don't include it.
  */
 
-
+ function oddFactorial(x){
+   let total=1;
+   for (let i=1;i <= x;i=i+2){
+       total = total * i;
+   }
+   return total;
+  }
 /**
  * Write a function that solves the Chessboard exercise from chapter two,
  * https://eloquentjavascript.net/02_program_structure.html#i_swb9JBtSQQ
  * Instead of printing each line using `console.log()`, build the grid using
  * a single string and return it at the end of the function
  */
+ function chessboard(x){
+ let size = x;
+
+ let board = "";
 
+ for (let u = 1; u <= size; u++) {
 
+   for (let f = 1; f <= size; f++) {
+
+     if ((f + u ) % 2 == 0)
+
+       board += " ";
+     else
+       board += "#";
+   }
+   board += "\n";
+ }
+ return board ;
+  }
 /*******************************************
  * DO NOT CHANGE ANYTHING BELOW THIS LINE!
  */
@@ -85,4 +143,3 @@ module.exports = {
   oddFactorial: typeof oddFactorial === 'function' ? oddFactorial : null,
   chessboard: typeof chessboard === 'function' ? chessboard : null,
 };
-