如何在javascript中填充select元素的选项 [英] How to populate the options of a select element in javascript

问题描述

代码：

var newSelect=document.createElement('select');
index=0;
var optn = document.createElement("option");

//langArray is an array that contains different items..the size
//is not fixed for this array.

for(element in langArray)
{
   //Now i want to assign each item in langArray to each option tag
   //will it be sumthng like "optn.options[index]=new Option("Sports", "sportsvalue", true,  false);
   //optn.accept(langArray[0]);
   index++;
}

我正试图通过这种方式填充选项，但它不能正常，因为我不喜欢知道如何从JS中的数组填充选项。我是否必须使用循环或者我可以将langArray分配给select元素的某些属性，并且每个东西都将启动并运行？

I'm trying to get options populated by this way but its not coming all right as I don't know how to populate the options from an array in JS. Do I even have to use the loop or can I just assign the langArray to some property of select element and every thing will be up and running?

推荐答案

您可以在循环中创建选项;

You can create the option inside the loop;

for(element in langArray)
{
   var opt = document.createElement("option");
   opt.value= index;
   opt.innerHTML = element; // whatever property it has

   // then append it to the select element
   newSelect.appendChild(opt);
   index++;
}

// then append the select to an element in the dom

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