大约有 45,000 项符合查询结果（耗时：0.0993秒） [XML]
Clojure: cons (seq) vs. conj (list)
I know that cons returns a seq and conj returns a collection. I also know that conj "adds" the item to the optimal end of the collection, and cons always "adds" the item to the front. This example illustrates both of these points:
...
Undoing accidental git stash pop
...ink there are always two commits for a stash, since it preserves the index and the working copy (so often the index commit will be empty). Then git show them to see the diff and use patch -R to unapply them.
share
...
If threads share the same PID, how can they be identified?
...though it would possibly make more sense to call this a TID, or thread ID) and they also have a TGID (thread group ID) which is the PID of the thread that started the whole process.
Simplistically, when a new process is created, it appears as a thread where both the PID and TGID are the same (new) ...
Configuring IntelliJ IDEA for unit testing with JUnit
I decided to try out IntelliJ this morning via the trial version and installed the JUnit plugin. I made a new Java project and I want to write a test case for it.
...
Will web browsers cache content over https
...
If a user were to visit mysite.com and download style.css, when they go to mysite.com would style.css get requested again?
– Frank
Mar 26 '11 at 8:26
...
Sequence contains no matching element
...tions are Single() (when you believe there's exactly one matching element) and SingleOrDefault() (when you believe there's exactly one or zero matching elements). I suspect that FirstOrDefault is the best option in this particular case, but it's worth knowing about the others anyway.
On the other h...
JPQL IN clause: Java-Arrays (or Lists, Sets…)?
...
works in JPA 1.0 (and its no mandatory surround with parenthesis, but for readability you should)
– Javier Larios
Mar 16 '18 at 16:08
...
Is it a good idea to index datetime field in mysql?
...n/5.0/en/mysql-indexes.html
This makes your datetime column an excellent candidate for an index if you are going to be using it in conditions frequently in queries. If your only condition is BETWEEN NOW() AND DATE_ADD(NOW(), INTERVAL 30 DAY) and you have no other index in the condition, MySQL will...
Temporarily disable some plugins using pathogen in vim.
...rbert is better suited for my situation, since I do have a lot of ftplugin and such. Thanks for answering, your solution is goign to be used in boxes I can't have pathogen installed.
– Somebody still uses you MS-DOS
Nov 25 '10 at 13:42
...
How does Junit @Rule work?
...n a more generic way.
For instance, ExternalResource executes code before and after a test method, without having to use @Before and @After. Using an ExternalResource rather than @Before and @After gives opportunities for better code reuse; the same rule can be used from two different test classes....