I have a lightning:input field in which I need to use ternary operator in "value" as shown below but it does not work. I believe I am wrong with the syntax.
<lightning:input name="user" placeholder="Search" value="{!isCreate == 'true' ? !acc.user : !acc.owner}"/>
Where, acc.user and acc.owner has value. acc is iterating variable of List.
The expression syntax for Aura components is {!...}. When you are inside of the expression (the ... from before), ! is the "not" expression operator. For example, {!!v.isRequired} means "return true if isRequired is false".
Sometimes, people may think that the ! is meant to denote the variable, as in:
`{!v.isRequired && !v.isEmpty}`
The documentation does call this out, but because it's only in one specific part, it's easy to overlook.
The below solution actually worked for me. It had extra '!' which caused the problem:
<lightning:input name="user" placeholder="Search" value="{!isCreate == 'true' ? acc.user : acc.owner}"/>