How to only submit form if validation passes?

Question

I am hoping to add some validation in to check whether certain fields are null if some are filled out. Unfortunately just using the required field isn't enough for this as I don't want to always make it mandatory, I just want to make certain fields mandatory if some are filled out. For example:

Email Address

Description

Both of the above fields are optional, however if a description is entered I want to validate that there is also a value for Email Address on submitting the form. I have this part of the script complete I believe.

I am hoping for some assistance on how to only submit the form if the validation passes. At the moment I have it set up as two different mouse up actions (Run a Javascript & Submit a Form) meaning that they're independent of eachother and it still submits the form even when the validation fails and an alert is brought up. So I am seeking help in writing the submit a form logic in my JavaScript file if anyone can lend a hand.

try67 · Answer

Basically you would use something like this:

var condition1 = ...;

var condition2 = ...;

var condition3 = ...;

if (condition1 && condition2 && condition3) this.mailDoc({cTo: "me@server.com"});

else app.alert("You must first do X, Y and Z before submitting the form.",1);

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