Passing string parameter to helper function in template engine

[Hosney]

I can't seem to pass in a static string parameter to the helper function in the template engine. It throws an unexpected string error. Is there a way I can pass in a string parameter?

var customHelper = {

    upperCase: function upperCase(str, suffix) {

        return str.toUpperCase() + suffix;

    }

};

var getDOMString = ej.base.compile('${upperCase("abc", "def")}', customHelper);

let opElem = getDOMString(data);

console.log(opElem[0].innerHTML);

[Jesus Arockia Sankaran S]

Hi Hosney, 

Thank you for contacting Syncfusion support. 

We have validated your requirement and we like to let you know that we have already logged a feature request on this and it can be tracked through our feedback portal below. 

Link: https://www.syncfusion.com/feedback/21751/optional-prefix-property-support-fortemplate-function 

We expect that this will be available with our Volume 1, 2021 release scheduled in the end of March and if you have any more specification/suggestions to the feature request you can add it as a comment in the portal. 

Please get back to us if you have any queries. 

Regards, 

Jesus Arockia Sankaran S