Forum | Appery.io

1. I have been learning a lot and I understand some of the basics of javascript but debugging has been slow. Can I use the below script to get values then calculate a result?

   function getTotal()
   {
   var adjustedProtein = proteinInput() + ServingsField();

   1. How can I display result into a label or input field?

      //display the result? I know this is wrong

      document.getElementById('AdjPrtCalc').innerHTML =
      "Total Protein Grams $"+adjustedProtein;

      }

Hello,

1, What exactly values do you want to calculate?

1. You can use local storage variable. http://docs.appery.io/documentation/w...

The values are multiplied by the users ServingsField() input.

function getTotal()
{
var adjustedProtein = proteinInput() * ServingsField();

If this script works I don't know how to return the result to a specific Input field
ie. 'AdjPrtCalc'.

function getTotal()
{
var adjustedProtein = proteinInput() * ServingsField();

getElement('AdjPrtCalc');

}

Is this the right format?

You can save value to localStorage variable and bind the variable to a component. See link from previous response.

I have gone through hours of tutorials watched video. I just was looking at the example but none of this makes sense. Outside of being critical to all responses I have read about calculations and returning results. I need application examples. "LocalStorage variables," what is that and the use for it. My input field is setting the value. I need to return a calculation. Script seems to be the easiest way. I understand some can be ran on the server. My calculations don't seem to be that complex. I want to call '$' a field and calculate the return. Writing the script in Appery is a little different than what I have learned.

I'm not calling HTML elements but Appery elements...this confuses me. If I could see the whole script and HTML maybe I could make more sense of how to input the javascript.

The examples I get online show examples of working with HTML not Appery. Theres an application gap I am missing.

Can I just put an HTML box into the screen and create a custom form with calculations completely in HTML and javascript?

Yes, you can use HTML component for HTML and JavaScript.
Try to start from this tutorial first: http://docs.appery.io/tutorials/build...

So I have been using the HTML element and it is so much easier to manipulate javascript, css and HTML. When mapping.....can I drag the html component to each request value then call it out with script to map the response so I can use the appery database?

As the HTML component can include any code, there is no way to expose attributes that you can use via mapping.

Using the HTML element allows me to calculate fields in javascript more easily. Actually I am lost how to do it otherwise using Appery. No script seems to be working and i can't debug it very fast because I can't see the entire source. I am lost on how appery works with the source code using js. The way I would write it for a normal html doc seems to be different with appery "run javascript." I can't find my values to elements then display them in other fields. I am missing something and like I said I have spent hours upon hours reading your tutorials. Most of the help I have recieved has been reading specific application questions people have asked. I don't need salesforce tutorials. Most of the tutorials I need are all cluttered up with Salesforce applications I want strictly appery.io tutorials with calculations to use appery database. I am frustrated cause I can write the javascript using html tags in the html component to do all my calculations but I can't make the run javascript to work when I invoke services. It's almost easier to build everything by scratch but I then have a problem accessing the appery database to create, update, query and so on.