{property-path}
Compares a value from a JSON file to a specified value to find out if they are equal.
Overview
The {property-path} query is used with data binding to determine whether one value is equal to another. Bind a value from your JSON file to a variable associated with the query. If the property-path is equal to the designated value, the element is processed.
For example, you want to change the title of a movie if the user has never watched it. Add a specialize element that contains a {property-path} query. If the timesPlayed variable is equal to 0, color the title white.
<specialize state="({timesPlayed}:0)">
<title tag="title" style="color:white"/>
</specialize>