Correctly Suppressing Warnings in DataTables?

Question

I'm trying to correctly suppress warnings (alerts) in DataTables. The standard behavior of DataTables is to throw a javascript alert when an error occurs; however, this is currently inconvenient for me. I have been trying to convert the warning to a javascript error by

$.fn.dataTableExt.sErrMode = 'throw'; 

Which works correctly, but this stops the current javascript execution, which is not what I want. So, I wrapped the DataTables operations (init and changes) in a try-catch with no error handling; however, this also halts the javascript execution. (Tested on Chrome and Firefox)

My question is how do I go about getting rid of these errors/alerts for the purposes of debugging? I'm trying to debug other parts of my script, but these alerts keep on getting in the way.

Answer 1

I modified the native alert using this closure function to redirect DataTables warnings to the console.

window.alert = (function() {     var nativeAlert = window.alert;     return function(message) {         window.alert = nativeAlert;         message.indexOf("DataTables warning") === 0 ?             console.warn(message) :             nativeAlert(message);     } })(); 

It restores the window.alert to its native function on first trigger. If you don't want it to restore to the original alert, just comment out the window.alert = nativeAlert; line.

Answer 2

Here's a solution proposed here that's slightly modified and works in v1.10.2 without having to change any vendor files:

$.fn.dataTableExt.sErrMode = "console";  $.fn.dataTableExt.oApi._fnLog = function (oSettings, iLevel, sMesg, tn) {   var sAlert = (oSettings === null)     ? "DataTables warning: "+sMesg     : "DataTables warning (table id = '"+oSettings.sTableId+"'): "+sMesg   ;    if (tn) {     sAlert += ". For more information about this error, please see "+               "http://datatables.net/tn/"+tn     ;   }    if (iLevel === 0) {     if ($.fn.dataTableExt.sErrMode == "alert") {       alert(sAlert);     } else if ($.fn.dataTableExt.sErrMode == "thow") {       throw sAlert;     } else  if ($.fn.dataTableExt.sErrMode == "console") {       console.log(sAlert);     } else  if ($.fn.dataTableExt.sErrMode == "mute") {}      return;   } else if (console !== undefined && console.log) {     console.log(sAlert);   } }