I have a list of lists (e.g. [[1,2],[3,4]]) passed from a Django view, stored in a hidden input of an html form, and submitted with jQuery. I need to parse that variable to pull indices. I have other lists passed between Django and html without a problem, but this list is posted by jQuery.

HTML:

<input type="hidden" name="resultMsgList" id="resultMsgList" value="[[&#39;View &quot;S03_2005_TAZ_140813_160946_with_geom&quot; was successfully created!&#39;, &#39;taz_mapfile_scen_tdm_140813_160946&#39;, &#39;S03_2005_TAZ_140813_160946_with_geom&#39;, &#39;C:/djangoProjects/web_output/mapfiles/ATLANTA/taz_mapfile_scen_tdm_140813_160946.map&#39;, [25, 50, 13.8926482138839, 44488.7998645071]]]"/>

Javascript:

var resultMsgList = $("#resultMsgList").val(); 

var data = {'resultMsgList':resultMsgList}; 

$.post(URL, data, function(result){ 

mapDataHtml = $(result).find("#mapData").html(); 

$("#mapData").html(mapDataHtml); });

I don't technically need the last 2 lines of code anymore, but it's not affecting my testing.

The post data from jQuery output to the Google console is: resultMsgList = u'[[\'View "S03_2010_TAZ_140813_112333_with_geom" was successfully created!\', \'taz_mapfile_scen_tdm_140813_112333\', \'S03_2010_TAZ_140813_112333_with_geom\', \'C:/djangoProjects/web_output/mapfiles/ATLANTA/taz_mapfile_scen_tdm_140813_112333.map\', [25, 50, 10.8820127624776, 49619.5163142776]]]'

It is currently giving me "String index out of range"  and an error at 

jquery-1.10.2.js:8706 so I think jQuery is viewing it as a string.