How to return 0 in JavaScript

Forum|Forum|1 year ago
March 5, 2025
3 replies
443 views

I use the javascript below to calculate the differance between 2 values. It works fine unless the value is 0, then it displays nothing. Is it posible to make it display 0 if the 2 values are the same?

// Get the values from the textboxes
var value1 = parseFloat(this.getField("RealEstate_Loan_1").value) || 0;
var value2 = parseFloat(this.getField("RealEstate_MarketValue_1").value) || 0;

// Perform the subtraction
var result =  value2 - value1;

// Set the result in another field (e.g., ResultBox)
this.getField("RealEstate_NetValue_1").value = result.toFixed(2);

JavaScript

PDF Automation Station

Community Expert

Enter the following Simplified Field notation in RealEstate_NetValue_1 and format the field as a number with 2 decimal places:

RealEstate_MarkeValue_1 - RealEstate_Loan_1

O

ordnance1Author

Participating Frequently

I altered the code to, but if the 2 textboxes are the same (say $10.00 then $10.00 - $10..00 should return $0.00) but textbox RealEstate_NetValue_1 displays nothing. The textrbox is formated as number with 2 decimal places.

var value1 = this.getField("RealEstate_Loan_1").value; 
var value2 = this.getField("RealEstate_MarketValue_1").value; 
event.value = value1 - value2; // Subtract the values

PDF Automation Station

Community Expert

It diplays 0.00 for me. Can you upload your form?

Thom Parker

Community Expert

Also, where is this script placed? If it's a caculation for "RealEstate_NetValue_1", then it should be a custom calculation on that field, and it should be written slightly differently.

Thom Parker - Software Developer at PDFScriptingUse the Acrobat JavaScript Reference early and often

O

ordnance1Author

Participating Frequently

The Calculation is attached to textbox NetValue. Format for textbox NetValue is set to Number, style 1,234.56 and currency is set to none.

PDF Automation Station

Community Expert

You have to change this.getField("RealEstate_NetValue_1").value to event.value and remove .toFixed(2)

Thom Parker

Community Expert

Is there formatting on the field? The formatting controls what is displayed.

Thom Parker - Software Developer at PDFScriptingUse the Acrobat JavaScript Reference early and often

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