Is it possible to do math with web app tags?

[Silas_J_Media]

I need to take the average of 5 numbered values.    {tag_average} = ( {tag_1} + {tag_2} + {tag_3} + {tag_4} + {tag_5} ) \ 5        is what I need to do.

[Liam Dilley]

Hey there, You will need to use javascript for that.

DO you know how to code in javascript and use something like jQuery?

[Silas_J_Media]

Thanks for the reply Liam,

I have a little bit of experience but its been a while. this is all I have so far:

        <script type="text/javascript">

          var a= {tag_a}

          var b= {tag_b};

          var c=  tag_c};

          var d = {tag_d };

          var e = {tag_e};

          var overall = (a + b + c + d + e) / 5;

    </script>

[Liam Dilley]

What do you want to do with the result?

(by the way you do not need to make multiple posts asking the same thing)

[Silas_J_Media]

I just want to output the result back on the page.

[Liam Dilley]

To where, a container?

You using jQuery or just doing normal javascript?

if normal javascript it would be using document.write into a targeted element with ID etc.

Devil is in the details here.

[TheBCMan]

Insert both into your page, put the HTML where you want the average text to be. I re-wrote your calulation in case any of the tag's don't have a value (although I assume a number) and incase you try to divide by zero.

Javascript:

<script type="text/javascript">

          $(document).ready(function(){ Doit('#averagehere'); })

          Doit=function(el){

                    var a= {tag_a} || 0;

                    var b= {tag_b} || 0;

                    var c=  tag_c} || 0;

                    var d = {tag_d } || 0;

                    var e = {tag_e} || 0;

                    var overall = (a + b + c + d + e) / 5;

                    if (overall==0){overall=''}else{overall/=5};

                    $(el).html(overall);

          }

</script>

HTML:

<span id="averagehere"></span>

[Silas_J_Media]

It throws an

Uncaught ReferenceError: $ is not defined

[Liam Dilley]

Because BCMan assumed your running jQuery which you are not hence why I did not jump into giving you code and asked you a couple of questions first

[TheBCMan]

Yeah assumed, include it from google in your page and you're good, so many pages on the net have the google jquery include on them I guarantee you already have it sitting in your browser cache so there is no performance hit including the LIB.