大约有 48,000 项符合查询结果（耗时：0.0245秒） [XML]
When to choose checked and unchecked exceptions
...is a good thing. You should clearly state what is your method expecting in order to work properly. This way you can validate the input only once.
For instance:
/**
* @params operation - The operation to execute.
* @throws IllegalArgumentException if the operation is "exit"
*/
public final voi...
Rails :include vs. :joins
... (0.0ms)←[0m ←[1mSELECT "users".* FROM "users" WHERE "users"."id" = ? ORDER BY "users"."id" ASC LIMIT 1←[0m [["id", 1]]
#=> 24
As you see, comment_1.user.age will fire a database query again in the background to get the results
Includes:
:includes performs a left outer join between th...
Why isn't SQL ANSI-92 standard better adopted over ANSI-89?
...t. But then an SQL92 evangilist explained that would actually force a join order. JESUS... all those Copy pasters I've seen are now actually forcing a join order - a job that's 95% of the time better left to optimizers especially a copy/paster.
Tomalak got it right when he said,
people don't sw...
How to replace plain URLs with links?
...-zA-Z]{2,6} should read something along the lines of (?:[a-zA-Z]{2,6})+ in order to match more complicated domain names, i.e. email@example.co.uk.
– Roshambo
Aug 19 '11 at 15:07
...
Which websocket library to use with Node.js? [closed]
...
Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
...
Difference between HBase and Hadoop/HDFS
...ou just need to make sure that you are using HBase as it should be used in order to get maximum performance
– Tariq
Feb 25 '16 at 7:49
...
Javascript fuzzy search that makes sense
... then ran the expensive string-distance measure to sort them in preference order.
I wrote some notes on Fuzzy String Search in SQL. See:
http://literatejava.com/sql/fuzzy-string-search-sql/
share
|
...
When should the volatile keyword be used in C#?
...ly "make sure that the compiler and the
jitter do not perform any code reordering or register caching
optimizations on this variable". It also means "tell the processors to
do whatever it is they need to do to ensure that I am reading the
latest value, even if that means halting other proces...
Is there a performance difference between i++ and ++i in C?
...++i is the "semantic" way to use a unary operator, while i++ is around in order to fit a specific need (evaluation before addition).
– TM.
Aug 12 '09 at 21:55
9
...
Counting the occurrences / frequency of array elements
... demo: http://jsfiddle.net/simevidas/bnACW/
Note
This changes the order of the original input array using Array.sort
share
|
improve this answer
|
follow
...