I am working with some custom code where I have participants enter a symmetric confidence interval (in Q112) around a value they input in a previous question (in Q111, specifically ${q://QID111/ChoiceNumericEntryValue/1}). I want all of these values that show up in Q112 to have 1 decimal place. Right now, Q111 allows for 1 decimal place, and this is reflected in "QR~QID112~2," but the confidence interval appears rounded to the nearest whole number ("QR~QID112~3" and "QR~QID112~4"). How can I edit the code below such that I get values with the correct decimal place (1 decimal) rather than rounded values ?
JS for Q112:
Qualtrics.SurveyEngine.addOnload(function()
{
document.getElementById("QR~QID112~2").disabled = true;
document.getElementById("QR~QID112~3").disabled = true;
document.getElementById("QR~QID112~4").disabled = true;
var val="${q://QID111/ChoiceNumericEntryValue/1}";
document.getElementById("QR~QID112~2").value = val;
setInterval(function(){
var val_1=parseInt(document.getElementById("QR~QID112~1").value);
var val_2=parseInt(document.getElementById("QR~QID112~2").value);
var val_3=val_2-val_1;
var val_4=val_1+val_2;
document.getElementById("QR~QID112~3").value=val_3;
document.getElementById("QR~QID112~4").value=val_4;
}, 100);
});
Qualtrics.SurveyEngine.addOnReady(function()
{
/*Place your JavaScript here to run when the page is fully displayed*/
});
Qualtrics.SurveyEngine.addOnUnload(function()
{
/*Place your JavaScript here to run when the page is unloaded*/
});
JS for Q113 (in case relevant):
Qualtrics.SurveyEngine.addOnload(function()
{
setInterval(function(){
var val_main="${q://QID111/ChoiceNumericEntryValue/1}";
jQuery("#QID113").hide();
var val_1=parseInt(document.getElementById("QR~QID112~1").value);
if(val_main<26 && val_1<=val_main)
{
document.getElementById("QR~QID113").value=1;
}
else if(val_main>25 && val_1<=50-val_main)
{
document.getElementById("QR~QID113").value=1;
}
else
{
document.getElementById("QR~QID113").value=0;
}
}, 100);
});
Qualtrics.SurveyEngine.addOnReady(function()
{
/*Place your JavaScript here to run when the page is fully displayed*/
});
Qualtrics.SurveyEngine.addOnUnload(function()
{
/*Place your JavaScript here to run when the page is unloaded*/
});
rounding errors in custom code values
Best answer by ahmedA
You are using
parseInt(), which is short for parse integer. So, your decimals are getting dropped. Here's how to get one decimal place.
Replace
parseInt(something here)with
Number(Number(something here).toFixed(1))
You are using
parseInt(), which is short for parse integer. So, your decimals are getting dropped. Here's how to get one decimal place.
Replace
parseInt(something here)with
Number(Number(something here).toFixed(1))
https://www.qualtrics.com/community/discussion/comment/34895#Comment_34895ahmedA very helpful!!! I am now occasionally getting too many decimals now? Is there a way to make sure it's exactly 1 decimal?
Here's the code i'm using:
Qualtrics.SurveyEngine.addOnload(function()
{
document.getElementById("QR~QID112~2").disabled = true;
document.getElementById("QR~QID112~3").disabled = true;
document.getElementById("QR~QID112~4").disabled = true;
var val="${q://QID111/ChoiceNumericEntryValue/1}";
document.getElementById("QR~QID112~2").value = val;
setInterval(function(){
var val_1=Number(Number(document.getElementById("QR~QID112~1").value).toFixed(1));
var val_2=Number(Number(document.getElementById("QR~QID112~2").value).toFixed(1));
var val_3=val_2-val_1;
var val_4=val_1+val_2;
document.getElementById("QR~QID112~3").value=val_3;
document.getElementById("QR~QID112~4").value=val_4;
}, 100);
});
Qualtrics.SurveyEngine.addOnReady(function()
{
/*Place your JavaScript here to run when the page is fully displayed*/
});
Qualtrics.SurveyEngine.addOnUnload(function()
{
/*Place your JavaScript here to run when the page is unloaded*/
});
I'm pretty sure if you look at the script, you'll figure out why that is happening. Once you do that, you can use the code above to handle it.
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