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VDL Conditions

VDL Actions can update a variable based on an existing value. For the latest versions of these examples, visit the FICO VDL Online Reference.

Toggle a Boolean Value

This example uses a Javascript variable (toggleVar) to toggle the vdl-var item value between true and false.

Code editor 
<script>
    function toggleVar(vm) {
        vm.vars.AGenabled(!vm.vars.AGenabled());
    }
</script>

<vdl-var name="AGenabled" value="=true"></vdl-var>

<vdl-action-group name="toggleActionGroup">
    <vdl-action command="toggleVar"></vdl-action>
</vdl-action-group>

Execute an Action if a Value Evaluates to True

In this example, the second action only runs if the vdl-var has a value of true.

Code editor 
<script>
    function display(vm, evt, value) {
        window.alert("Value is: " + value);
    }
</script>
<vdl-action-group name="doCalc">
    <vdl-action command="=100"></vdl-action>
    <vdl-action command="=value * value" vdl-if="=vars.AGenabled"></vdl-action>
    <vdl-action command="display"></vdl-action>
</vdl-action-group>

Using Conditions with an Action Group

It is possible to add a vdl-if conditional attribute to a vdl-action-group tag.

Code editor 
<vdl-action-group name="groupHide" vdl-if="=vars.AGenabled">
    <vdl-action command="='Hello'"></vdl-action>
    <vdl-action command="display"></vdl-action>
</vdl-action-group>

<button vdl-event="click:actions.groupHide">Show</button>
Parent Topic Using VDL Actions