我确信对此有一个非常简单的修复方法，而且我很可能没有以最有效的方式做到这一点。
我正在尝试创建一个 if 语句，该语句将检查是否在多个问题中选择了多个单选按钮。如果选择它们，我希望弹出一个带有特定消息的警报框。可能有很多选择组合，所以我假设有很多 if/else 语句(？)
有问题的 JavaScript 位于底部。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Spigit Input Form</title>
<meta name="description" content="Spigit Input Form">
<meta name="author" content="SitePoint">
<link rel="stylesheet" href="css/styles.css?v=1.0">
<link rel="stylesheet" href="Project_File_CSS.css">
<!--[if lt IE 9]>
<script src="https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv.js"></script>
<![endif]-->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="jquery_spigit.js"></script>
</head>
<body>
<!--<script src="js/scripts.js"></script>
<script src="New_File_JS.js"></script>-->
<script type="text/javascript" src="selection_storage.js"></script>
<!--<script type="text/javascript" src="recommendation_logic.js"></script>-->
<!---------------------------------------------------------Operating Company Question----------------------------------->
<form name="operatingCompany">
<h3>What Operating Company Are You Employeed With?</h3>
<input type="radio" name="opco" value="GPC" >GPC</br>
<input type="radio" name="opco" value="APC" >APC</br>
<input type="radio" name="opco" value="MPC" >MPC</br>
<input type="radio" name="opco" value="Gulf" >Gulf</br>
<input type="radio" name="opco" value="SCS" >SCS</br></br>
<input type="button" value="Display User Selection" onclick=get_opco() />
</form>
<p id="opco_result"> </p></br>
<!---------------------------------------------------------Prototyped Question----------------------------------->
<form name="prototyped">
<h3>Has the innovation been prototyped?</h3>
<input type="radio" name="prototyped" value="Yes" >Yes</br>
<input type="radio" name="prototyped" value="No" >No</br></br>
<input type="button" value="Display User Selection" onclick=get_prototype() />
</form>
<p id="prototyped_result"> </p></br>
<!--------------------------------------------------------Adopted or Tested Question---------------------------->
<form name="adopted_tested">
<h3>Has the innovation been adobpted or tested?</h3>
<input type="radio" name="adopt" value="Yes" >Yes</br>
<input type="radio" name="adopt" value="No" >No</br></br>
<input type="button" value="Display User Selection" onclick=get_adopt_test() />
</form>
<p id="adopted_tested_result"> </p></br>
<!------------------------------------------------------Can it make money Question------------------------------->
<form name="makeMoney">
<h3>Is this a product or service that can make money?</h3>
<input type="radio" name="money" value="Yes" >Yes</br>
<input type="radio" name="money" value="No" >No</br></br>
<input type="button" value="Display User Selection" onclick=get_money() />
</form>
<p id="makeMoney_result"> </p></br>
<!---------------------------------------------------Alabama Power Specific Question----------------------------->
<h3>What is your innovative idea to help Alabama Power improve safety, grow revenue, reduce cost, or increase operational efficiency?</h3>
<textarea id="alabamaPower" rows="8" cols="50">
</textarea> </br></br>
<input type="button" value="Display User Input" onclick=textareacapture() />
<p id="result"> </p></br>
<!------------------------------------------------IT Specific Question------------------------------------------->
<form name="innovativeTechnology">
<h3>Is your innovation an innovative technology or process that boosts the company's productivity or brings additional value from a vendor relationship?</h3>
<input type="radio" name="innovative" value="Yes" >Yes</br>
<input type="radio" name="innovative" value="No" >No</br></br>
<input type="button" value="Display User Selection" onclick=get_innovative() />
</form>
<p id="innovativeTechnology_result"> </p></br>
<input type="button" value="Submit Form" onclick=get_recommendation() />
<script>
function get_recommendation(){
if((document.operatingCompany.opco[0,1,2,3,4].checked) && (document.prototyped.prototyped[0,1].checked) && (document.adopted_tested.adopt[0,1].checked))
{
alert("Everyday Solutions");
}
}
</script>
</body>
</html>
最佳答案
使用此测试来确定是否已选中任何单选按钮:
($(":checked").length > 0)
如果您只对页面上的单选按钮或复选框的子集感兴趣，则可以优化选择器。
关于javascript - HTML/Javascript && If 语句中的条件，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/51405691/