大约有 23,300 项符合查询结果（耗时：0.0342秒） [XML]
Parsing IPv6 extension headers containing unknown extensions
...ermediate proxy modified TCP headers without knowledge of an encapsulating ESP header?) Simplicity beats "extensible" in this case!
– jman
Jul 8 '13 at 4:08
...
Is it bad practice to make a setter return “this”?
... lots of nulls or default values, and it gets hard to know which value corresponds to what)
Several overloaded constructors (downside: gets unwieldy once you have more than a few)
Factory/static methods (downside: same as overloaded constructors - gets unwieldy once there is more than a few)
If yo...
HTTP GET request in JavaScript?
...alse for synchronous request
xmlHttp.send( null );
return xmlHttp.responseText;
}
However, synchronous requests are discouraged and will generate a warning along the lines of:
Note: Starting with Gecko 30.0 (Firefox 30.0 / Thunderbird 30.0 / SeaMonkey 2.27), synchronous requests on the...
Separation of JUnit classes into special test package?
... this scheme too), it also doesn't allow to test visibility automatically, esp. if you use TDD and let your IDE generate needed method stubs. It may generate them with package-private visibility (NetBeans, I'm looking at you), which makes your test pass perfectly (after you actually put implementati...
Skip List vs. Binary Search Tree
I recently came across the data structure known as a skip list . It seems to have very similar behavior to a binary search tree.
...
IN vs OR in the SQL WHERE Clause
...ty point of view), when there are less values to be compared.
IN is useful esp. when you have a dynamic source, with which you want values to be compared.
Another alternative is to use a JOIN with a temporary table.
I don't think performance should be a problem, provided you have necessary indexes....
List comprehension rebinds names even after scope of comprehension. Is this right?
...on
requires a separate execution frame.
Thus, generator expressions
(especially if they iterate over a
short sequence) were less efficient
than list comprehensions.
However, in Python 3, we decided to
fix the "dirty little secret" of list
comprehensions by using the same
impleme...
Read a text file using Node.js?
...ing a file named on the command-line; there are obviously many subtleties (esp. performance) that are beyond the scope of this question.
– maerics
Feb 7 '12 at 5:33
...
How to reset radiobuttons in jQuery so that none is checked
...urposely used to make you think that this may not be what you are used to (esp if coming from other C style syntax languages where 0 is false).
– lambacck
Mar 15 '12 at 14:52
...
Apache Spark: The number of cores vs. the number of executors
...pu-vcores, should probably be set to 63 *
1024 = 64512 (megabytes) and 15 respectively. We avoid allocating 100%
of the resources to YARN containers because the node needs some
resources to run the OS and Hadoop daemons. In this case, we leave a
gigabyte and a core for these system processes. Cloude...