Adobe Captivate 9 : rounding to the last 2 decimals

[nicolas-hsj]

Hi,

We are programming a quizz in Adobe Captivate 9. For some reason, we cannot use the quizz function.

We are calculating by ourself the final percentage. For the moment, the variable is returning a value with something like 15 digits (65,546543643974..)

The question is : how is it possible to round the number to a maximum of 2 decimals ?

Tx

[TLCMediaDesign]

You'll most likely need to create a variable in Captivate to display the percentage as you cannot overwrite system variables.

In the JavaScript window on enter of the slide where you see the number execute this JS:

var tempVal = Math.round(cpAPIInterface.getVariableValue('percentageVariable");

cpAPIInterface.setVariableValue( "yourVariable", tempVal )

percentageVariable represents the variable you are using in Captivate that displays the decimals

yourVariable represents the new variable you create to display the percentage

[Lilybiri]

David, is this not returning an integer, instead of a number with 2 decimals?

[Joelocate]

David, This JS is great!  

For the lay person ( like me ).   It rounds to an even percentage .

Don’t forget, after copying  this JavaScript. You need to make a few small changes or it won't work.

One of my friends pointed out that I needed to: 

1. Change the double quote in at the end of (‘percentageVariable”) to a single quote mark.
2. Add another parentheses after (‘percentageVariable’)) but before the semi colon.
3. End line two ( "yourVariable", tempVal ); with a semi colon.    

It works when published HTML5. 

[TLCMediaDesign]

You're right Lieve, I think I lost part of the script while substituting the Captivate variable setters and getters!

Try this:

var tempVal = parseInt( window.cpAPIInterface.getVariableValue('percentageVariable') )

window.cpAPIInterface.setVariableValue( "yourVariable", tempVal.toFixed( 2 ) )

[Lilybiri]

Thanks!

Shouldn't it be 'parseFloat' instead of 'parseInt' to keep two decimals?

[Paul Wilson CTDP]

I always try to make the number of questions and the question points divisible in such a way that you don't end up with fractions. For example, If you have 51 questions someone who gets 45 correct and they are all valued equally, will get a score of 88.23529411... If you simply remove one question, the score becomes 90%.

[nicolas-hsj]

It's working thank you very much for all.