How to select all elements based off of an attribute value containing a string in Prototype

Question

Here's my scenario.

I have the following inputs within a page.

<input name="myInput[field1]" value="field1value" type="text" />

<input name="myInput[field2]" value="field2value" type="text" />

<select name="myInput[select1]">
   <option value="1" selected="selected">Option 1</option>
   <option value="2">Option 2</option>
   <option value="3">Option 3</option>
</select>

Using Prototype, I am trying to select all fields containing myInput within the name attribute and loop through each of them to append their values to a variable, like this:

var myVar = field1Value + field2Value + select1Value;

Is this possible?

Answer 1

The correct solution is the following:

var myVar;
$$('[name^="myInput"]').each( function(i) {
   myVar += i.value;        
});

They key to selecting all inputs, containing myInput in their name attribute is using the ^ symbol before the = sign. So [name^="myInput"] is the correct selector to achieve this.