Initializing help system before first use

Advanced Expressions

In addition to accessing the available global objects, you can make use of any standard JavaScript syntax and globals provided by the insight API, such as insight, lodash _ and jquery $.
It is common to define your global functions within script blocks or external script files and use them in expressions. 
<script>
function add(a, b) {
    return a + b;
    }
</script>
<span vdl-text="=add(scenario.entities.MyInteger.value,
                     scenario.entities.AnotherInteger.value)">
</span>
The above example depicts an inline script block that defines the add(a,b) global function. It is called by the expression and passes MyInteger and AnotherInteger from the model. The span contents contain the result of the function call.
For more complex functions it is best practice to place them in a separate file for import: 
<script src="math-functions.js"></script>
<span vdl-text="=add(scenario.entities.MyInteger.value,
                     scenario.entities.AnotherInteger.value)">
</span>
Parent Topic Using VDL Expressions

© 2001-2019 Fair Isaac Corporation. All rights reserved. This documentation is the property of Fair Isaac Corporation (“FICO”). Receipt or possession of this documentation does not convey rights to disclose, reproduce, make derivative works, use, or allow others to use it except solely for internal evaluation purposes to determine whether to purchase a license to the software described in this documentation, or as otherwise set forth in a written software license agreement between you and FICO (or a FICO affiliate). Use of this documentation and the software described in it must conform strictly to the foregoing permitted uses, and no other use is permitted.