each of DataStore, Methods Webix Docs

objectan object that the method is applied to ("this" by default) all

booleanif true, hidden (as well as hidden by filtering) items are iterated

Example

template:function(data){
        var names = [];
        if (data.each)
            data.each(function(obj){  names.push(obj.name);});
        return names.join(", ");
}

Related samples

Template Uploader

Details

The method function has two parameters:

obj - data item object;
index - the sequence number of the file, beginning from 0.

template:function(data){
        var names = [];
        if (data.each)
            data.each(function(obj, index){ 
                names.push(obj.name);
                console.log(index + " is the index of the file")
             });
        return names.join(", ");
}