如何以编程方式添加下拉列表(< select>)? [英] How to add Drop-Down list (<select>) programmatically?
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问题描述
我想创建一个函数,以编程方式在页面上添加一些元素。
假设我想添加一个包含四个选项的下拉列表:
< select name =drop1id =Select1>
< option value =volvo>沃尔沃< / option>
< option value =saab> Saab< / option>
< option value =mercedes> Mercedes< / option>
< option value =audi> Audi< / option>
< / select>
我该怎么做?
解决方案
这将工作(纯JS,附加到ID myDiv
的div):
var myDiv = document.getElementById(myDiv);
//创建要添加的选项数组
var array = [Volvo,Saab,Mercades,Audi];
//创建并附加选择列表
var selectList = document.createElement(select);
selectList.id =mySelect;
myDiv.appendChild(selectList);
//创建并附加选项
for(var i = 0; i< array.length; i ++){
var option = document.createElement(option );
option.value = array [i];
option.text = array [i];
selectList.appendChild(option);
}
I want to create a function in order to programmatically add some elements on a page.
Lets say I want to add a drop-down list with four options:
<select name="drop1" id="Select1">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</select>
How can I do that?
解决方案
This will work (pure JS, appending to a div of id myDiv
):
var myDiv = document.getElementById("myDiv");
//Create array of options to be added
var array = ["Volvo","Saab","Mercades","Audi"];
//Create and append select list
var selectList = document.createElement("select");
selectList.id = "mySelect";
myDiv.appendChild(selectList);
//Create and append the options
for (var i = 0; i < array.length; i++) {
var option = document.createElement("option");
option.value = array[i];
option.text = array[i];
selectList.appendChild(option);
}
Demo: http://jsfiddle.net/4pwvg/
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