使用phantomsjs，如何获取值并将其分配给数组的元素？

Question

The following piece of code when ran produces "undefined".

var getList = document.getElementById('lbExercises').option;
console.log(getList);

The html i wish to get the data from is as follows:

<select id="lbExercises" class="listBox" style="height:400px;width:350px;"                
name="lbExercises" size="4">
<option value="1270">Value I want to Extract 2</option>

The issue is with my JS code - if it helps im running my code by using phantomsjs filename.js

Thanks.

Answer 1

You could get the first value of the first option like this:

var getList = document.getElementById('lbExercises');
console.log(getList.options[0].value);

See jsFiddle:

http://jsfiddle.net/3LLBS/

This is how you would assign it to an element of an array:

var anArray = new Array();
anArray[0] = 123;
anArray[1] = 456;
anArray[2] = 789;

// assign the new value
anArray[1] = getList.options[0].value;

console.log(anArray[1]);

See jsFiddle:

http://jsfiddle.net/3LLBS/1/