如何在Javascript

Question

我已经开发了一个命令行程序及其工作，但是当它完成时它没有完成。我必须控制+ c一个shell退出

我是javascript的新手。我必须将一个回调称为该程序完成它吗？

我的代码：

importer.then(function (csvData) {
    var mySqlConnection = new MySqlConnection(config['phpipam-db']['host'], config['phpipam-db']['user'], config['phpipam-db']['password'], config['phpipam-db']['database']);
    var connection = mySqlConnection.getConnection();

    mySqlConnection.selectSubnets(connection).then(function (customerFolders) {
        var ipv6Data = manager.getIpv6CustomerSubnetsInsertData(csvData, customerFolders);
        var ipv4Data = manager.getIpv4CustomerSubnetsInsertData(csvData, customerFolders);

        mySqlConnection.insertIpv6Subnets(ipv6Data);
    });
});

Answer 1

在console.log和var connection = mySqlConnection.getConnection();之后添加mySqlConnection.insertIpv6Subnets(ipv6Data);个语句。

如果它们被执行，则问题不在您发布的代码中。

如果不是，你必须检查你的承诺是否得到满足。

Answer 2

这种方法：manager.getIpv6CustomerSubnetsInsertData，mySqlConnection.insertIpv6Subnets是否也会返回承诺？

如果你修改这样的代码，你能在控制台中看到完成吗？

importer.then(function (csvData) {
  var mySqlConnection = new MySqlConnection(config['phpipam-db']['host'], config['phpipam-db']['user'], config['phpipam-db']['password'], config['phpipam-db']['database']);
  var connection = mySqlConnection.getConnection();

  return mySqlConnection.selectSubnets(connection).then(function (customerFolders) {
    var ipv6Data = manager.getIpv6CustomerSubnetsInsertData(csvData, customerFolders);
    var ipv4Data = manager.getIpv4CustomerSubnetsInsertData(csvData, customerFolders);

    return mySqlConnection.insertIpv6Subnets(ipv6Data);
  }).then(function () {
    console.log('Done');
  });
});