大约有 46,000 项符合查询结果（耗时：0.0285秒） [XML]
Remove redundant paths from $PATH variable
...
Here is a one line code that cleans up the PATH
It does not disturb the order of the PATH, just removes duplicates
Treats : and empth PATH gracefully
No special characters used, so does not require escape
Uses /bin/awk so it works even when PATH is broken
export PATH="$(echo "$PATH" |/bi...
What are enums and why are they useful?
...tants, which may override methods).
Implementing an interface (or more) in order to not bind the client code to the enum (which should only provide a set of default implementations).
The simplest example would be a set of Comparator implementations:
enum StringComparator implements Comparator<...
When & why to use delegates? [duplicate]
...f the benefits of compile time static binding. Invocation of a delegate is orders of magnitude faster than the reflection invoke alternative. Additionally if a function signature changes such that it no longer matches the delegate this results in a compile time error which you don't get with reflect...
How do you share code between projects/solutions in Visual Studio?
...ere it is not straightforward to deploy a separate DLL into SharePoint. In order to share common functionality between InfoPath forms the linked class file approach is very useful. It is placed one level above the individual form projects and everything is source controlled at the root level.
...
What is a race condition?
...eduling algorithm can swap between threads at any time, you don't know the order in which the threads will attempt to access the shared data. Therefore, the result of the change in data is dependent on the thread scheduling algorithm, i.e. both threads are "racing" to access/change the data.
Probl...
How to enable local network users to access my WAMP sites?
....
#
# Require all granted
# onlineoffline tag - don't remove
Order Deny,Allow
Deny from all
Allow from 127.0.0.1
Allow from ::1
Allow from localhost
</Directory>
Now assuming your local network subnet uses the address range 192.168.0.?
Add this line after All...
Best practices for API versioning? [closed]
...e object, and you have versioned your various objects (customers are v3.0, orders are v2.0, and shipto object is v4.2). Here is the nasty URL you must supply in the client:
(Another reason why version in the URL sucks)
http://company.com/api/v3.0/customer/123/v2.0/orders/4321/
...
How to retrieve the first word of the output of a command in bash?
... way is the use of bash arrays:
array=( $string ) # do not use quotes in order to allow word expansion
echo ${array[0]} # You can retrieve any word. Index runs from 0 to length-1
Also, you can directly read arrays in a pipe-line:
echo "word1 word2" | while read -a array; do echo "${array[0]}" ...
Remove duplicate values from JS array [duplicate]
...
}
This chunk of ugly code does the same as the snippet #3 above, but an order of magnitude faster (as of 2017 it's only twice as fast - JS core folks are doing a great job!)
function uniq(a) {
var seen = {};
return a.filter(function(item) {
return seen.hasOwnProperty(item)...
Turning a Comma Separated string into individual rows
... String > ''
)
SELECT
SomeID,
OtherID,
DataItem
FROM tmp
ORDER BY SomeID
-- OPTION (maxrecursion 0)
-- normally recursion is limited to 100. If you know you have very long
-- strings, uncomment the option
Output
SomeID | OtherID | DataItem
--------+---------+----------
1 ...