大约有 20,000 项符合查询结果（耗时：0.0310秒） [XML]
MongoDB: Is it possible to make a case-insensitive query?
...ties', { collation: { locale: 'en', strength: 2 } } );
In either case, in order to use the case-insensitive index, you need to specify the same collation in the find operation that was used when creating the index or the collection:
db.cities.find(
{ city: 'new york' }
).collation(
{ locale: 'e...
What are fixtures in programming?
...
I think PHP-unit tests have very good explaining of this:
One of the most time-consuming parts of writing tests is writing the
code to set the world up in a known state and then return it to its
original state when the test i...
JavaScript hashmap equivalent
... three major ways to keep a collection of objects addressable by a key:
Unordered. In this case to retrieve an object by its key we have to go over all keys stopping when we find it. On average it will take n/2 comparisons.
Ordered.
Example #1: a sorted array — doing a binary search we will find...
Is embedding background image data into CSS as Base64 good or bad practice?
...
In order to avoid multiple classes and only specify a sprite sheet once, you could use an attribute selector: [emoji] {background-image: url(data:image/png;base64,qwedfcsfrtgyu/=);} [emoji=happy] {background-position: -20px 0px;...
What's the difference between RANK() and DENSE_RANK() functions in oracle?
...
RANK gives you the ranking within your ordered partition. Ties are assigned the same rank, with the next ranking(s) skipped. So, if you have 3 items at rank 2, the next rank listed would be ranked 5.
DENSE_RANK again gives you the ranking within your ordered part...
Best XML parser for Java [closed]
...
java-samples.com/showtutorial.php?tutorialid=152 (personally love SAX)
– kitokid
Dec 15 '12 at 6:42
...
比起创业孵化器 双创中国更急需的是创业教育 - 资讯 - 清泛网 - 专注C/C++...
...创业者面对面分享自己的心得体会，探讨创业路上的具体问题。这种分享是免费和开放的。诸多的谷创业明星都曾来到这个平台进行分享，影响了一批又一批的创业者。
而在中国，这种创业分享形式却被现实原因所阻碍。最为...
What is the advantage of GCC's __builtin_expect in if else statements?
... ...
after_if:
You can see that the instructions are arranged in such an order that the bar case precedes the foo case (as opposed to the C code). This can utilise the CPU pipeline better, since a jump thrashes the already fetched instructions.
Before the jump is executed, the instructions below ...
Best way to extract a subvector from a vector?
...irely clear; and it gets worse if the length and start_pos are of the same order of magnitude.)
Anyway, remember that this is not a copy, it's just a view of the data in the vector, so be careful. If you want an actual copy, you could do:
std::vector<T> new_vec(my_subspan.cbegin(), my_subspan....
Capturing Groups From a Grep RegEx
..."*.jpg"
regex="[0-9]+_([a-z]+)_[0-9a-z]*"
for f in $files # unquoted in order to allow the glob to expand
do
if [[ $f =~ $regex ]]
then
name="${BASH_REMATCH[1]}"
echo "${name}.jpg" # concatenate strings
name="${name}.jpg" # same thing stored in a variable
...