js键值对遍历数组

var data = [];
data['上海'] = [{
city:'闵行',
value:'minhang'
},{
city:'浦东',
value:'pudong'
}];

data['四川'] = [{
city:'温江',
value:'wenjiang'
},{
city:'成都',
value:'chengdu'
}];

// 遍历数组
for(var province in data){
for(var i=0;i<data[province].length;i++){
console.log(province + ' - ' + data[province][i].city + ' - ' + data[province][i].value);
}
}