How to populate data in one custom field based on other custom field?

Question

I am using following code snippet in Description to populate the value in field B depending on what value is selected from field A, using field A onchange trigger. Field A is select list but when in use field A.Value in my code it returns a number instead of the literal value of the selection. I have to populate filed B based on what is selected in field A but I am not able to compare as I said the value returned is number and the not the literal value that I select. My second if statement above never returns true because sid.value is returned as a number or id of "ABBOTSFORD PUBLIC SCHOOL (ABBOTSFORD)" How do I map this id to my literal value?

Nic Brough -Adaptavist- · Answer

Not with javascript, you need to work with the numbers.

Harsh Pruthi · Answer

Thanks Ivan.

Is there a property that provides the actual stored value and not it number representation? There definitely will be some mapping somewhere between these numbers and the actual value

Ivan Tovbin · Answer

Perhaps the reason for this is because the value of a single select list type field is a LazyLoadedOption object and not a string representation of its value. The number you are getting is probably that very option's id.