dropdown list jquery -

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i have array following value,

[['6','ltr'],['7','ml']]

how can use array fill drop down list using jquery 

$(function() {     var arr = [['6', 'ltr'], ['7', 'ml']];     var html = "<select>";     $.each(arr,function(i, item) {         html += '<option value="' + item[0] + '">' + item[1] + '</option>';     });     html += "</select>";     $('#select').html(html); }); 
$(function() {     var arr = [['6', 'ltr'], ['7', 'ml']];     $.each(arr,function(i, item) {         alert(item[0] + ' ' + item[1]);     }); });

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