将参数从 onclick 事件传递到使用数据对象构建 HTML 的函数中 - 到目前为止在 jsfiddle 中工作了一半

Question

我正在尝试从 javascript 对象访问数据，以便使用适当的信息动态填充 div。在我的示例中，教程分为三个步骤。当用户完成每个步骤后，他们单击按钮继续下一步。我希望将函数“getStepData(stepNumber)”称为 onclick，并将步骤号传递到函数中并在我在 javascript 中构建的 html 中使用。示例代码在这里，但我也有一半在 jsFiddle 中工作：

http://jsfiddle.net/ enajenkins/xvFeX/24/

//create data object that will hold all data to be accessed later.               
var tutorialDataObj = {    
//define the tutorial container
profilePageTutorials: {        
    //define the steps and their data
    step1: {
        id: "tip1",
        class: "profile_tip",
        title: "Step 1",
        subtitle: "How to edit your profile"
    },//END: step1        
    step2: {
        id: "tip2",
        class: "search_tip",
        title: "Step 2",
        subtitle: "How to search"
    },//END: step2        
    step3: {
        id: "tip3",
        class: "change-photo_tip",
        title: "Step 3",
        subtitle: "How to upload a new photo"
    }//END: step3                
}//END: profileTutorial    
}//END: tutorialDataObj
//identify the div container that the dynamic html will be written into
var tutorialWindow = document.getElementById("tutorial-step-window");
//shorten the path to the data in the object
var tutorials = tutorialDataObj.profilePageTutorials;
//loop through each step in the data object
for ( var step in tutorials ) {
    //build the html to be inserted dynamically using data from object
    var html = ["<h2 id='title'>" + tutorials.step1.title + "</h2>" +
                "<h3>" + tutorials.step1.subtitle + "</h3>"];
    //insert the html into the div container
    tutorialWindow.innerHTML = html;
    alert(tutorials[step].subtitle);
}

function getStepData (stepNumber) {
alert(stepNumber); //here, I'm trying to access the argument from the input button.     I'd like to pass it into the html I'm building above so I can access the data from the intended step when the user clicks the button.
}

这是 html：

<div id="tutorial-step-window" class="tip">HOWDY</div>
<input type="button" value="Change Data" onclick="getStepData(3)" />

Answer 1

试试这个..

http://jsfiddle.net/xvFeX/45/

我稍微做了一下与您描述的方式不同，但实现相同的目标：

我删除了按钮上的内联单击事件并添加了一个 id。
然后我在js中添加了点击，并根据对象中的步骤数进行了计数。