检查子数组分组所依据的主键值

const data = {
"cat1":[
        {"id":"1","name":"SomeName", "category":"cat1"},
        {"id":"15","name":"SomeName2", "category":"cat1"}
    ],
"cat2":[
        {"id":"12","name":"Somename3", "category":"cat2"}
    ],
"cat3":[
        {"id":"18","name":"SomeName4", "category":"cat3"}
    ]
}

const delayed = [];

for(const [name, value] of Object.entries(data)) {
  if (name === "cat2") {
    console.log(value); // first log cat2
    continue;
  }
  delayed.push(value); // the rest will be put to delayed array
}

delayed.forEach(console.log.bind(console)); // log remaining items