javascript无法在我的浏览器上运行

Question

I am following an on-line tutorial on JavaScript. 我正在关注有关JavaScript的在线教程。 Currently the guy is teaching functions, when I copy what he is doing and have exactly the same text on my editor it does not work on chrome or any other browser. 目前，该人员正在教功能，当我复制他的工作并且在我的编辑器中具有完全相同的文本时，它将无法在chrome或任何其他浏览器上使用。

I did some research and people were saying JavaScript is blocked, however I checked in chrome and its not. 我做了一些研究，有人说JavaScript被阻止，但是我检查了chrome，但没有检查。 I went to settings, content settings and I can see that is says " Allow all sites to run JavaScript (recommended)". 我去了设置，内容设置，我看到的是“允许所有站点运行JavaScript（推荐）”。

I do not get an error, just a blank page. 我没有收到错误，只是空白页。 I am completely new to programming and this is putting me off the tutorial. 我是编程的新手，这使我不熟悉本教程。

              <!DOCTYPE html>
                <html>
                <head
                <title>Functions</title>
                 </head>
                <body>
               <script type="text/javascript">



              var foo = doSomething(2);
              var bar = doSomething(3);
              function doSomething(paramOne){

          paramOne = paramOne + 3;
          paramOne = paramOne + 1;
          paramOne = ParamOne * 8 ;

           return paramOne;

               }

              alert(foo);
              alert(bar);


              </script>

              </body>
              </html>

Answer 1

If you look in Chrome's console ( right-click > Inspect Element , select the Console tab) 如果您在Chrome浏览器的控制台中查看（ 右键单击 > 检查元素 ，选择“ 控制台”选项卡）

You'll see: 你会看到的：

Uncaught ReferenceError: ParamOne is not defined

This is because you have a capital P on ParamOne in your third line. 这是因为你有一个资本P上ParamOne在第三行。

Because Javascript (and most other programming languages ) are case-sensitive, you'll need to make it lowercase: 因为Javascript（和大多数其他编程语言）区分大小写，所以您需要将其小写：

paramOne = paramOne + 3;
paramOne = paramOne + 1;
paramOne = paramOne * 8;
        // ^ was a capital P

javascript无法在我的浏览器上运行

问题描述

1 个解决方案

解决方案1
4 2013-12-27 18:19:45

javascript无法在我的浏览器上运行

问题描述

1 个解决方案

解决方案1 4 2013-12-27 18:19:45

解决方案1
4 2013-12-27 18:19:45