returns the helper function that implements the filtering logic
|function||the function that implements the filtering logic|
var helper = $$("querybuilder1").getFilterHelper(); ... $$("$datatable1").filter(helper);
The returned "helper" iterates through the data items and checks them against the filter rules. The "helper" returns true if the item complies with the rule and false if it doesn't.
After you received the helper, you can pass it to the Webix filter method to enable filtering of data components with Query Builder.