TypeError: invalid 'in' operand obj in jquery 1.9.1 version

Question

$.ajax({
    async: false,
    type: \"POST\",
    url: url+\"module/listing/\"+projectId,
    data: \"ajax=true\",
    success: function(response) {
        $.each(resp         


        

Answer 1

I was getting this error while sending an array of column names to jQuery DataTables. The array needs to be an array of objects, not just an array of names. link to columns

BAD columns: ["Column1", "Column2"]

GOOD columns:[{title: "Column1"}, {title: "Column2"}]