Javascript:将参数传递给函数以调用变量

Question

在尝试增强功能时在工作中遇到麻烦。我刚刚学习了 Javascript 入门类(class)，所以我希望能找到很多人来帮助我进步。 :)

这是我想要做的一个例子:

 <script type="text/javascript">

var title1 = "<h2>Cisco</h2>";
var summary1 = "<p>Cool class</p>";
var Register1 = "<button>Register</button>";

var title2 = "<h2>Whatever title</h2>";
var summary2 = "<p>Whatever Summary</p>";
var Register2 = "<button>Whatever Register</button>";

 //But I have to create about 10 functions if I do it this way...
     function course1()
     {
          document.getElementById('courseTitle').innerHTML = title1;
          document.getElementById('courseSummary').innerHTML = summary1;
          document.getElementById('courseRegister').innerHTML = Register1;

     }

     function course2()
     {
          document.getElementById('courseTitle').innerHTML = title2;
          document.getElementById('courseSummary').innerHTML = summary2;
          document.getElementById('courseRegister').innerHTML = Register2;

     }

//So I taught about doing it with parameters so I could only build one function. 
//For some reason it doesn't work.


//Here is how my improved function idea looks
     function course(x)
     {
          document.getElementById('courseTitle').innerHTML = title+x;
          document.getElementById('courseSummary').innerHTML = summary+x;
          document.getElementById('courseRegister').innerHTML = Register+x;

     }

//And here is how you would call them

<input type"button" value="course1" onclick="course(1)">
<input type"button" value="course1" onclick="course(2)">

如果有任何帮助，我将不胜感激!谢谢。

Answer 1

您可以使用数组来保存数据:

var data = [{
                title: "<h2>Cisco</h2>",
                summary: "<p>Cool class</p>",
                Register: = "<button>Register</button>"
            },{
                title: "<h2>Whatever title</h2>",
                summary: "<p>Whatever Summary</p>",
                Register: "<button>Whatever Register</button>"
            }];

然后将索引传递给您的函数:

function course( index ) {
  document.getElementById('courseTitle').innerHTML = data[index].title;
  document.getElementById('courseSummary').innerHTML = data[index].summary;
  document.getElementById('courseRegister').innerHTML = data[index].Register;
}