我正在构建一个人格类型的测验，并且很难定制结果页面，因为我喜欢它。 display_scenario函数中包含的if语句不起作用。我希望它根据countValue变量的值生成不同的最终消息，但它不起作用。如果你能够帮助我理解它为什么不起作用，我会很感激。
关键代码如下。它在Codepen上也有用：http://codepen.io/msummers40/pen/eZaePe
基本上，测验： - 问人们一系列问题 - 每个答案都分配了一个数字权重 - 此数字权重在countValue变量中计算 - 我想使用countValue变量作为生成四个最终页面之一的方法
我试图在测验结束时设置一个if语句，但它不起作用，我不确定如何让它工作 - 它似乎正在构建无论if语句中有什么内容，最后的视图。
如果你能够提供帮助，谢谢你。
<body>
<!-- QUIZ BEGINS -->
<div id="wrapper">
<h2 id="cyoaHeader">TITLE HERE<br><small>SUBHED</small></h2>
<div id="quizImage"> </div>
<div id="prompt"> </div>
<div id="options"> </div>
<div id="buildingStatus"> </div>
</div>
<div id="addLinks"> </div>
<!-- QUIZ ENDS -->
<script>
// JSON for quiz
// Contains the questions, images and variable to give answers weight/direction
var story = {
intro: {
prompt: 'You need to get up and out and get on with a big task - what song would propel you out of bed?',
quizImage: '<img id="quizImage" src="https://upload.wikimedia.org/wikipedia/commons/a/ab/Semi-nude_woman_getting_out_of_bed_(rbm-QP301M8-1887-265a~5).jpg"><br />',
options: [{
name: 'Song 4',
path: 'questionTwo',
addition: 4
}, {
name: 'Song 3',
path: 'questionTwo',
addition: 2
}, {
name: 'Song 2',
path: 'questionTwo',
addition: 3
}, {
name: 'Song 1',
path: 'questionTwo',
addition: 1
}]
},
questionTwo: {
prompt: 'Sentence.<br/><br/>Question 2?',
quizImage: '<img id="quizImage" src="http://www.allgifs.com/wp-content/uploads/2013/09/pancake.gif">',
options: [{
name: 'A',
path: 'result',
addition: 4
}, {
name: 'B',
path: 'result',
addition: 3
}, {
name: 'C',
path: 'result',
addition: 2
}, {
name: 'D',
path: 'result',
addition: 1
}]
},
result: {
prompt: 'This is the default statement on the results page. I need to make it tailored to the countValue variable',
quizImage: '<img id="quizImage" src="http://viralgifs.com/wp-content/uploads/2014/03/cat_did_u_forget.gif">',
options: [{
name: 'FINAL CTA',
path: 'intro',
addition: 0
}]
}
};
//establishing counter for weighted answer
var countValue = 0;
console.log(countValue);
var additionInt = 0;
console.log(additionInt);
// Option is an object with properties {name and path objects, addition array}
function display_scenario(options) { //value passed had been chosen_options
var option_name = options.name;
var option_path = options.path;
var additionInt = options.addition;
countValue += additionInt;
// countValue = (additionInt + countValue);
console.log(additionInt);
console.log(countValue);
var scenario = story[option_path];
// Clear the #prompt, #quizImage, #options, #addLinks, #buildingStatus divs before writing new ones in if statment below -- GROUP THESE IN A FUNCTION BEFORE GO LIVE
jQuery('#prompt').empty();
jQuery('#quizImage').empty();
jQuery('#options').empty();
jQuery('#addLinks').empty();
jQuery('#buildingStatus').empty();
// THIS IF ELSE STRUCTURE DOESN'T SEEM TO BE WORKING - I'M TRYING TO SET IT UP SO THAT IT DISPLAYS ONE OF FOUR OPTIONS, DEPENDING ON THE VALUE OF THE countValue VARIABLE. ATM ONLY THREE OPTIONS ARE IN PLACE; NONE ARE WORKING.
// Create a <p> to display what the user has chosen if option_name is not null and append it to the #prompt <div>
if (options.name != 'result') {
jQuery('<p>').html('<i>You selected <b>' + option_name + '</b></i><br><p>And the running total is ' + countValue + '</p>').appendTo('#buildingStatus');
// Append the scenario's prompt
jQuery('<p>').html(scenario.prompt).appendTo('#prompt');
// Appending an image
jQuery('<p>').html(scenario.quizImage).appendTo('#quizImage');
// Appending links in the addLinks div
jQuery('<div>').html(scenario.addLinks).appendTo('#addLinks');
} else if (options.name == 'result' && countValue<17) {
jQuery('<p>').html('<i>Yay! This option worked. You selected <b>' + option_name + '</b></i><br><p>And the running total is ' + countValue + '</p>').appendTo('#buildingStatus');
// Append the scenario's prompt
jQuery('<p>').html(scenario.prompt).appendTo('#prompt');
// Appending an image
jQuery('<p>').html(scenario.quizImage).appendTo('#quizImage');
// Appending links in the addLinks div
jQuery('<div>').html(scenario.addLinks).appendTo('#addLinks');
} else {
jQuery('<p>').html('<i>Yay! This option worked. You selected <b>' + option_name + '</b></i><br><p>And the running total is ' + countValue + '</p>').appendTo('#buildingStatus');
// Append the scenario's prompt
jQuery('<p>').html(scenario.prompt).appendTo('#prompt');
// Appending an image
jQuery('<p>').html(scenario.quizImage).appendTo('#quizImage');
// Appending links in the addLinks div
jQuery('<div>').html(scenario.addLinks).appendTo('#addLinks');
};
// Append the options into the #options <div>
// We want to loop through all the options and create buttons for each one. A regular for-loop would not suffice because adding a button is not asynchronous. We will create an asynchronous loop by using recursion
function add_option_button(index) {
if (index === scenario.options.length) {
// Base case
return;
}
var option = scenario.options[index];
// Create a <button> for this option and append it to the #options <div>
jQuery('<button>')
.html(option.name)
.click(function(e) {
// This is an onclick handler function. It decides what to do after the user has clicked on the button.
// First, prevent any default thing that the button is going to do, since we're specifying our own action for the button
e.preventDefault();
// We'll want to call display_scenario() with this option
display_scenario(option);
})
.appendTo('#options');
// Add the next option button
add_option_button(index + 1);
}
add_option_button(0);
}
// This function waits until the document is ready
jQuery(document).ready(function() {
// Start the quiz
display_scenario({
name: null,
path: 'intro',
addition: 0
});
});
</script>
</body>
</html>
答案 0 :(得分：1)
我认为除了每次都显示场景之外，每当用户更改内容时，您都需要重新计算总和。将display_scenario函数拆分为一个以显示选项，并将其拆分为单独的逻辑以汇总所有选项。