Dynamically set select-options with JavaScript

How can I dynamically set the options from my html select field with Javascript? This is my page setup:

<form name="test">
  <table>
    <tr>
      <td class='dataleft'>Product: </td>
      <td><select name='inptProduct'></select></td>
    </tr>
  </table>
</form>

I have all values in an array. This is the location to set the <option>s.

for(var i = 0; i < productArray.length; i++) {
    console.log("<option value='" + productArray[i] + "'>" + productArray[i] + "</option>");
}

PS: jQuery can be used.

Solution: This is the final solution I was looking for. It does not apply the new options to the select field. It removes all first, and then adds the new ones:

var optionsAsString = "";
for(var i = 0; i < productArray.length; i++) {
    optionsAsString += "<option value='" + productArray[i] + "'>" + productArray[i] + "</option>";
}
$("select[name='inptProduct']").find('option').remove().end().append($(optionsAsString));

Solution 1:

wellyou have almost done it all:

var optionsAsString = "";
for(var i = 0; i < productArray.length; i++) {
    optionsAsString += "<option value='" + productArray[i] + "'>" + productArray[i] + "</option>";
}
$( 'select[name="inptProduct"]' ).append( optionsAsString );

EDIT removed $ wrapper around last optionsAsString as append automatically converts strings

Solution 2:

var $inputProduct = $("select[name='inputProduct']")

$(productArray).each(function(i, v){ 
    $inputProduct.append($("<option>", { value: v, html: v }));
});

Solution 3:

Assuming that the array productArray is a simple array, with each element being the value of the option, and the desired title for that option.

$( 'select[name="inptProduct"]' )
  .html( '<option>' + productArray.join( '</option><option>' ) + '</option>' );

Example:

productArray = ['One', 'Two', 'Three'];

// With the original code being

<select name="inptProduct">
  <option>There could be no options here</option>
  <option>Otherwise, any options here will be overwritten</option>
</select>

// Running the code above would output

<select name="inptProduct">
  <option>One</option>
  <option>Two</option>
  <option>Three</option>
</select>

Solution 4:

function onLoad() {

  var type = new Array("Saab","Volvo","BMW");

    var $select = $("select[name='XXXXXType']")
    alert($select);
    $(type).each(function(i, v){
        $select.append($("<option>", { value: v, html: v }));
      });

}

<select name="XXXXXType" id="XXXXXType"></select>