javascript - How to assign variable to json object -

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'i'm trying assign variable parent div json string of child table , can't seem javascript straight.

what i'd see, or variation of:

{"blocks":[{"id":"115",courses:[{"semester":"s,f","credits":"3","subject":"act"}‌​, {"semester":"f","credits":"6","subject":"csi"}]}]

and jquery have far.

$('#update').click(function (e){     var table = $('#table').tabletojson();     var blockid = $('#table').closest('div.block').attr('id');     table = {"block":table};     document.getelementbyid('courselist').value = json.stringify(table); }

i'm not sure how add in variable need in object? how insert blockid?

i'm assuming bracket notation you're looking :

$('#update').on('click', function(){     var table   = $('#table').tabletojson();     var blockid = $('#table').closest('div.block').attr('id');     var table2  = {};      table2[blockid] = table;      $('#courselist').val( json.stringify(table2) ); });

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