Hide or calculate field based on another field

[Angelique2023!]

I have below script. But I cannot seem to get it to work.

var v1 = Number(this.getField("Text2").value);
if (v1=="") eventvalue = "";
else event.value = v1-0.75

I had below before, which worked. But then I also need field Tex5 to be hidden when Text2 is empty

var v1 = Number(this.getField("Text2").value)
event.value = v1-0.75

[Bernd Alheit · Accepted solution]

Try this:

var v1 = Number(this.getField("Text2").value);
if (v1==0) event.value = "";
else event.value = v1-0.75

[Angelique2023!]

thank you, this works. 
I still seem to be having issues though.

I have textfield Text 3 which has this code:

var v1 = Number(this.getField("Text2").value);
var v2 = Number(this.getField("Text1").value);
if (v1==0) event.value = "";
else event.value = v2-v1

This works fine.

And I have text field Text6

Which has this code:
var v5 = Number(this.getField("Text3").value);
if (v5==0) event.value = "";
else event.value = v5-0.25

Which works once. after that it keeps showing the wrong number.

If I remove the number from text2, it does show nothing, but if I enter a number again it only show -0,25

[Bernd Alheit]

Change the field calculation order.

[Angelique2023!]

I'm sorry, I am a noob. I don't understand what exactly I should change

[Bernd Alheit · Accepted solution]

You can change it at:

[Angelique2023!]

perfect. I have never noticed that before. thank you