大约有 45,000 项符合查询结果（耗时：0.0431秒） [XML]
Random number generator only generating one random number
...ap when they aren't contested... and even if contested I would expect the "now do something with the number" code to dwarf the cost of the lock in most interesting scenarios.
– Marc Gravell♦
Sep 18 '09 at 15:57
...
Select multiple records based on list of Id's with linq
...Profile.Join(idList, up => up.ID, id => id, (up, id) => up);
And now result of my measurement. I generated 100 000 UserProfiles and 100 000 ids. Join took 32ms and .Where with .Contains took 2 minutes and 19 seconds! I used pure IEnumerable for this testing to prove my statement. If you us...
Meaning of $? (dollar question mark) in shell scripts
...
This is even more wrong now. [ 1 ] and [ 0 ] are both true; [ without an operator checks if the argument is a non-empty string.
– tripleee
Jun 30 '19 at 17:05
...
How can I selectively merge or pick changes from another branch in Git?
...file (search in that page for "split").
Having split the changes, you can now cherry-pick just the ones you want.
share
|
improve this answer
|
follow
|
...
Getting “unixtime” in Java
...a 8 you can use
import java.time.Instant
...
long unixTimestamp = Instant.now().getEpochSecond();
Instant.now() returns an Instant that represents the current system time. With getEpochSecond() you get the epoch seconds (unix time) from the Instant.
...
Populate a Razor Section From a Partial
...
@JohnBubriski There is in Razor 2. Don't know about prev. versions.
– Shimmy Weitzhandler
Nov 26 '12 at 10:18
...
How to automatically convert strongly typed enum into int?
...
That's another weird example of 'we know better what you want to do' from C++ creators. Conventional (old-style) enums had tons of benefits like implicit conversion to indexes, seamless using of bitwise operations etc.. The new style enums added a really great ...
Interop type cannot be embedded
...
Now, (ten years later) this option is called "Embed Interop Types"
– David Foley
Mar 6 '19 at 19:54
...
Create array of all integers between two numbers, inclusive, in Javascript/jQuery [duplicate]
...
As of now, I can confirm it's working in an Android WebView (Android System WebView 60.0.3112.116, Android 6.0.1, Nexus 5)
– AjahnCharles
Sep 21 '17 at 8:11
...
Accessing MP3 metadata with Python [closed]
...answered Sep 19 '08 at 14:30
OwenOwen
19.2k1313 gold badges3838 silver badges4747 bronze badges
...