大约有 43,000 项符合查询结果（耗时：0.0467秒） [XML]
Difference between rake db:migrate db:reset and db:schema:load
...r to use rake db:seed to add data.
rake db:migrate provides tasks up, down etc which enables commands like rake db:rollback and makes it the most useful command.
rake db:reset does a db:drop and db:setup
It drops the database, create it again, loads the schema, and initializes with the seed data
Rel...
How to check if two arrays are equal with JavaScript? [duplicate]
...to extend to DataViews. Should also be able to extend to RegExps probably, etc.
As you extend it, you realize you do lots of unnecessary comparisons. This is where the type function that I defined way earlier (solution #2) can come in handy; then you can dispatch instantly. Whether that is worth th...
Are Exceptions in C++ really slow
..., is not trivial to measure:
The side-table is generally cold, and thus fetching it from memory takes a long time
Determining the right handler involves RTTI: many RTTI descriptors to fetch, scattered around memory, and complex operations to run (basically a dynamic_cast test for each handler)
S...
What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion?
... then this means you only update when the major changes, so 1.0, 2.0, 3.0, etc.
AssemblyFileVersion
Used for deployment. You can increase this number for every deployment. It is used by setup programs. Use it to mark assemblies that have the same AssemblyVersion, but are generated from different b...
Why should I use core.autocrlf=true in Git?
...orking on that can read it), or just like you keep branches/merges/rebases/etc along the chosen policy, they should get a clear rule: set correct crlf.
– quetzalcoatl
Oct 20 '17 at 8:07
...
Byte order mark screws up file reading in Java
...is can be helpful.
Edit: If you need to detect the BOM in UTF-16, UTF-32, etc, then the constructor should be:
new BOMInputStream(is, ByteOrderMark.UTF_8, ByteOrderMark.UTF_16BE,
ByteOrderMark.UTF_16LE, ByteOrderMark.UTF_32BE, ByteOrderMark.UTF_32LE)
Upvote @martin-charlesworth's comment...
Default constructor vs. inline field initialization
...ne ivar depends on another through a series of heuristic steps to execute, etc).
@Michael B said:
... I'd prefer to put all initialization code into those (and chain them) rather than splitting it up between constructors and field initializers.
MichaelB (I bow to the 71+ K rep) makes perfect ...
How to get JSON response from http.Get
...production as this answer originally demonstrated! (Which is what http.Get/etc call to). The reason is that the default client has no timeout set; if the remote server is unresponsive, you're going to have a bad day.
share
...
What is std::promise?
...
@FelixDombek: Perfect forwarding etc. std::function has many constructors; no reason not to expose those to the consumer of my_task.
– Kerrek SB
Feb 18 '14 at 17:50
...
Download a file with Android, and showing the progress in a ProgressDialog
...Dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
mProgressDialog.setCancelable(true);
// execute this when the downloader must be fired
final DownloadTask downloadTask = new DownloadTask(YourActivity.this);
downloadTask.execute("the url to the file you want to download");
mProgressDialog....