Convert Number in Javascript

Question

I have a simple drop down menu on a form:

<form id="form1" name="form1" method="post" action="">
  <select name="ddlSelect" id="ddlSelect">
  <option value="">Select</option>
    <option value="-1">Yes</option>
    <option value="0">No</option>
  </select>
</form>

I would like to convert the values for each option to display in an email using a java script function but am not sure how to do this. Can anyone help? Ex. -1 = Yes, 0 = No

Since JavaScript can't send email, what language are you going to use to process the form and send email? — j08691
– j08691, Commented Sep 21, 2012 at 3:01
Is this form in the email? or is the contents of the form submitted somewhere as an email? — NickSlash
– NickSlash, Commented Sep 21, 2012 at 3:02
What do you mean by "convert"? Change the string "-1" to the number -1 (as per the two answers so far)? If so, what does that have to do with emailing? — nnnnnn
– nnnnnn, Commented Sep 21, 2012 at 3:20

jfriend00 · Accepted Answer · 2012-09-21 03:01:59Z

1

You can convert a string to a number in javascript several ways:

num = parseInt(elem.value, 10)
num = +elem.value;
num = parseFloat(elem.value);

answered Sep 21, 2012 at 3:01

jfriend00

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Comments

ikku · Accepted Answer · 2012-09-21 03:11:03Z

0

I usually use:

num = elem.value * 1;

answered Sep 21, 2012 at 3:11

ikku

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