javascript - How to concate function parameter value into object literal property name -


i have following js code (also use jquery):

jquery(function($) {   $(".to_manufacturer").click(function() {     var checked = $(this).is(':checked');     var man_id = $(this).attr("to_manufacturer_id");     update_is_in_to(man_id, "to_manufacturer", checked)   });   $(".to_model").click(function() {     var checked = $(this).is(':checked');     var man_id = $(this).attr("to_model_id");     update_is_in_to(man_id, "to_model", checked)   });   $(".to_type").click(function() {     var checked = $(this).is(':checked');     var man_id = $(this).attr("to_type_id");     update_is_in_to(man_id, "to_type", checked)   });    function update_is_in_to (man_id_val, modelname, checked_val) {     $.ajax({        url: "/admin/catalog/to/"+modelname+"s/ajax/update_is_in_to",        type: "get",        data: {id: man_id_val, modelname_is_in_to_val: checked_val},       success: function(text)       {         //$("#total_count").html(text + " товар(ов)");       },       error: function(){         alert('Ошибка обновления объекта с id = '+man_id_val+' ! Очередная попытка...');         $.ajax(this);       },       datatype : "html"     });   } });

how can make param modelname_is_in_to_val composite, first part method param modelname , second string "_is_in_to_val"?

i tried modelname + "_is_in_to_val" received errors. right it?

also not code violate according js conventions?

you'll need use bracket notation , build object outside function:

function update_is_in_to (man_id_val, modelname, checked_val) {     var data = {};     data.id = man_id_val;     data[modelname + '_is_in_to_val'] = checked_val;      $.ajax({         ...         data: data,         ...     }); }

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