写一些相当基本的html ..当我尝试点击按钮没有任何反应..但是我的控制台中记录了一个错误,因为没有定义说英语
<head>
<meta charset="utf-8">
<title>Language Translator</title>
<script type='text/javascript'>
function speakenglish() {
var ddl = document.getElementById("ispeakenglish");
var selectedValue = ddl.options[ddl.selectedIndex].value;
if (selectedValue === "selectlanguage") {
alert("Please select a answer");
}
if (selectedValue === "speakenglishno") {
alert("Sorry to partake in our service you will need to be able to speak english");
}
if (selectedValue === "speakenglishyes")
{
location.replace({% static '/page2.html' %});
}
}
</script>
</head>
<body>
<h1> Basic Language Translator</h1>
<p> A Userbase generated language translator </p>
<label class="languespoken" for="ispeakenglish">Do you know English?</label>
<select id="cardtype" name="cards">
<option value="selectlanguage">--- Please select ---</option>
<option value="speakenglishyes">Yes</option>
<option value="speakenglishno">No</option>
</select>
<input type="button" onclick="speakenglish()" value="Proceed">
</body>
答案 0 :(得分:3)
更改id
var ddl = document.getElementById("cardtype");
因为您在该页面中没有id ispeakenglish 。
您也能解释一下这段代码的作用location.replace({% static '/page2.html' %});
吗?
答案 1 :(得分:1)
这是因为您没有ispeakenglish
id的任何元素。所以函数有错误。
TypeError: ddl is null
快速解决方案是替换
var ddl = document.getElementById("ispeakenglish");
与
var ddl = document.getElementById("cardtype");
答案 2 :(得分:1)
在这一行
location.replace({% static '/page2.html' %});
您遇到语法错误。因此,无法解析<script>
标记,并且函数仍未定义。
我不确定,你想在那里做什么,所以我无法解决它。如果这只是一个重定向,你可能想要使用:
window.location = '/page2.html';
答案 3 :(得分:1)
您的函数声明中存在语法错误:
SyntaxError: invalid property id
location.replace({% static '/page2.html' %});
修复它,你的功能将正常工作:)
答案 4 :(得分:1)
试试这个:
<head>
<meta charset="utf-8">
<title>Language Translator</title>
<script type="text/javascript">
function speakenglish() {
var ddl = document.getElementById("cardtype");
var selectedValue = ddl.options[ddl.selectedIndex].value;
if (selectedValue === "selectlanguage") {
alert("Please select a answer");
}
if (selectedValue === "speakenglishno") {
alert("Sorry to partake in our service you will need to be able to speak english");
}
if (selectedValue === "speakenglishyes")
{
//location.replace({% static '/page2.html' %}); //change It
window.location = 'page2.html';
}
}
</script>
</head>
<body>
<h1> Basic Language Translator</h1>
<p> A Userbase generated language translator </p>
<label class="languespoken" for="ispeakenglish">Do you know English?</label>
<select id="cardtype" name="cards">
<option value="selectlanguage">--- Please select ---</option>
<option value="speakenglishyes">Yes</option>
<option value="speakenglishno">No</option>
</select>
<input type="button" onclick="speakenglish()" value="Proceed">
</body>