How to solve the conflict between litium jquery and the jquery that I use ?

SheryBulos,

Your are getting error just beacuse your code is coming under script tag as well, whenever if you wish to continue to run jquery code you should use

<@liaAddScript>
    ;(function($){
        $(document).ready(function() {
            $('table.generic').DataTable();
        } );
    })(LITHIUM.jQuery);

var setTablesFilters = (attrName, tableId, attrIndex) => {
    var table = $('#'+tableId).DataTable();
    let uniqueFilterList =  table.column(attrIndex).data().unique().toArray();
        return uniqueFilterList.map((val)=>{ return {'name':val, 'checked': false}});
}

</@liaAddScript>

or script code only in

<@liaAddScript>
var setTablesFilters = (attrName, tableId, attrIndex) => {
    var table = $('#'+tableId).DataTable();
    let uniqueFilterList =  table.column(attrIndex).data().unique().toArray();
        return uniqueFilterList.map((val)=>{ return {'name':val, 'checked': false}});
}
</@liaAddScript>