[英]Javascript generation of html inputs
<body>
<form action="insertquestion.php" method="POST">
<script>
function xyz(){
var str="answer";
var str1=1;
for(var i = 0; i < 5; i++){
var str3 = str+str1;
document.write('<input type=text name=str3 />');
str1++;
}
}
xyz();
</script>
<input type="submit" value="Submit"/>
</form>
</body>
I wanted the name attribute of the input text to be of the form answer1
, answer2
, answer3
, answer4
, answer5
to be generated automatically but name attribute of all the input feilds are showing the constant value str3
. 我希望输入文本的名称属性具有自动生成的形式
answer1
, answer2
, answer3
, answer4
, answer5
,但是所有输入字段的名称属性都显示常数str3
。
How to include html in javascript? 如何在javascript中包含html?
You're setting your inputs name to the same value instead of concatenating this name from variables. 您将输入名称设置为相同的值,而不是通过变量将其连接在一起。
Also str
, str1
and str3
variables are in fact not needed to do it, and your code can be simplified. 同样,实际上不需要
str
, str1
和str3
变量,并且可以简化您的代码。
So your generation function could look like: 因此,您的生成函数可能类似于:
function xyz(){
for(var i = 1; i <= 5; i++){
document.write('<input type=text name="answer' + i + '" />');
}
}
Look this: 看看这个:
label{ float:left; }
<form action="insertquestion.php" method="POST"> <script> function xyz(){ var str="answer"; for(var i = 0; i < 5; i++){ document.write('<label>Answer ' + i + ': </label><input type=text name="answer' + i +'" /><br><br>'); } } xyz(); </script> <br><br><input type="submit" value="Submit"/> </form>
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