Remove null value from a number array

jhwang · 2019-03-07T22:48:38+00:00

Hello, I created a number array as follows: Qualtrics.SurveyEngine.addOnReady(function() { var i1=parseInt("${q://QID1/ChoiceTextEntryValue}"); var i2=parseInt("${q://QID2/ChoiceTextEntryValue}"); var i3=parseInt("${q://QID3/ChoiceTextEntryValue}"); var myArray = [i1, i2, i3]; And I want to randomly select one of these items in the array, so I write: var randomItem = myArray[Math.floor(Math.random() * myArray.length)]; But the problem is, if one of the three items is null (a respondent skill the question), this does not work. Could you please tell me how I can remove null item in the array? Thank you very much.

Remove null value from a number array | Experience Community

Sign up

Login to the Community

Scanning file for viruses.

This file cannot be downloaded