Question

我有一个数组，我希望数组中的每个值都作为选项显示在输入选择框中。这就是我自己试过的：

<select>
<script language="javascript" type="text/javascript"> 

var cars = ["Saab", "Volvo", "BMW"];

for(cars)
{
    document.write("<option>"cars"</option>");
}
</script>
</select>

Answer 1

使用这个javascript应该是这样的

<select id="MySelectBox">
</select>

<script language="javascript" type="text/javascript"> 

var cars = ["Saab", "Volvo", "BMW"];

for (i=0; i<cars.length; i++) {
        option+= "<option value='"+cars[i]+"'>"+cars[i]+"</option>";
}
document.getElementById("MySelectBox").html= option;

</script>

Answer 2

你可以轻松地使用for循环

<script language="javascript" type="text/javascript"> 

var cars = ["Saab", "Volvo", "BMW"];

for(var i=0;i<cars.length;i++)
{
    var diVContent = '<option>'+cars[i]+'</option>';
    document.write(diVContent);
}
</script>

Answer 3

您可以使用以下代码并尝试：

<script language="javascript" type="text/javascript"> 

 var cars = ["Saab", "Volvo", "BMW"];
 var select_c = '<select>';
 for(var i=0;i<cars.length;i++)
 {
     select_c += '<option>'+cars[i]+'</option>';

 }
 select_c += '</select>';
 document.write(select_c);
</script>

你可以在这里看到小提琴：Demo

Javascript：数组元素进入选择框作为选项

3 个答案: