Nightwatch to select option from select box

Question

I am trying to use nightwatch.js to select an option from a select box.

I have the code:

    this.browser.click('select[name="month"]')
        .pause(1000)
        .click('option[value="3"]')
        .click('select[name="day"]')
        .pause(1000)
        .click('option[value="6"]')
        .click('select[name="year"]')
        .pause(1000)
        .click('option[value="1989"]');

It selects the correct month, year on the page but not the day. Here's the HTML for the select box for the day:

<select aria-label="Day" id="day" name="day" data-validatorGroup="bday" data-component="selectbox">
    <option selected="selected" value="" aria-label="Date of birth">
        Day</option>
    <option value="1">1</option>
            <option value="2">2</option>
            <option value="3">3</option>
            <option value="4">4</option>
            <option value="5">5</option>
            <option value="6">6</option>
            <option value="7">7</option>
            <option value="8">8</option>
            <option value="9">9</option>
            <option value="10">10</option>
            <option value="11">11</option>
            <option value="12">12</option>
            <option value="13">13</option>
            <option value="14">14</option>
            <option value="15">15</option>
            <option value="16">16</option>
            <option value="17">17</option>
            <option value="18">18</option>
            <option value="19">19</option>
            <option value="20">20</option>
            <option value="21">21</option>
            <option value="22">22</option>
            <option value="23">23</option>
            <option value="24">24</option>
            <option value="25">25</option>
            <option value="26">26</option>
            <option value="27">27</option>
            <option value="28">28</option>
            <option value="29">29</option>
            <option value="30">30</option>
            <option value="31">31</option>
         </select>

Does anyone know why its not selecting the proper day?

Answer 1

According to this post, this works:

.click('#myselectbox option[value=somevalue]')