javascript - Check checkboxes by value -

i have been using code comma separated list of checkboxes checked.

$(".hidfeedsids").val($.map($(':checkbox[name=channel\[\]]:checked'), function (n, i) {     return n.value; }).join(',')); 

now need opposite, have list need check checkboxes values on it.

can tell me how done?

aside fact code isn't syntactically valid...

$('input:checkbox').filter(function() {     return valuesarray.indexof(this.value) > -1 }).prop('checked', true);