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[klothoskir]

hello.

I have 4 fields Α2,Β2,Α3,Β3 

In B3 field i use this code

// Get field values as numbers

var v1 = +getField("B2").value;

var v2 = +getField("A3").value;

// calculate this field value

event.value = v1- v2;
event.value = Math.ceil(event.value);

It works but i would like to appear in B3 when i write a number in A3.If no i do not want to be appeared

[try67]

Use this code:

var s1 = this.getField("B2").valueAsString;
var s2 = this.getField("A3").valueAsString;
if (s1 && s2) {
	var v1 = Number(s1);
	var v2 = Number(s2);
	event.value = Math.ceil(v1 - v2);
} else event.value = "";