From 65243261259061a3a0f8ec6ab9459fb0325110d6 Mon Sep 17 00:00:00 2001
From: 404 <baixiaoyu@gmail.com>
Date: Tue, 27 Jan 2015 10:05:11 +0800
Subject: [PATCH] Chap12.js: function setData() is wrong.

> As you can see from the preceding output, this formula succeeds in generating a set of random numbers between 1 and 10

````js
Math.floor(Math.random() *  (this.numElements+1))
````

This will yield 0 if Math.random returns 0.
---
 Chapter12/Chap12-1.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Chapter12/Chap12-1.js b/Chapter12/Chap12-1.js
index 2413207..1fdad10 100644
--- a/Chapter12/Chap12-1.js
+++ b/Chapter12/Chap12-1.js
@@ -16,7 +16,7 @@ function CArray(numElements) {
 function setData() {
    for (var i = 0; i < this.numElements; ++i) {
       this.dataStore[i] = Math.floor(Math.random() * 
-                          (this.numElements+1));
+                          this.numElements) + 1;
    }
 }