How can I get a list of all values in select box?
You had two problems:
1) The order in which you included the HTML. Try changing the dropdown from "onLoad" to "no wrap - head" in the JavaScript settings of your fiddle.
2) Your function prints the values. What you're actually after is the text
x.options[i].text; instead of x.options[i].value;
Change:
x.lengthto:
x.options.lengthLink to fiddle
And I agree with Abraham - you might want to use text instead of value
Update
The reason your fiddle didn't work was because you chose the option: "onLoad" instead of: "No wrap - in "
As per the DOM structure you can use below code:
var x = document.getElementById('mySelect'); var txt = ""; var val = ""; for (var i = 0; i < x.length; i++) { txt +=x[i].text + ","; val +=x[i].value + ","; }