大约有 11,295 项符合查询结果（耗时：0.0287秒） [XML]
Why does Clojure have “keywords” in addition to “symbols”?
I have a passing knowledge of other Lisps (particularly Scheme) from way back. Recently I've been reading about Clojure . I see that it has both "symbols" and "keywords". Symbols I'm familiar with, but not with keywords.
...
Is it possible to use raw SQL within a Spring Repository
I need to use raw SQL within a Spring Data Repository, is this possible? Everything I see around @Query is always entity based.
...
Android Studio IDE: Break on Exception
It seems my Android Studio does not want to break on any exception by default. Enabling break on "Any Exception" starts breaking within actual JDE libraries. Is there any way to force it to break only on exceptions within my code only?
...
What does the question mark and the colon (?: ternary operator) mean in objective-c?
...
This is the C ternary operator (Objective-C is a superset of C):
label.frame = (inPseudoEditMode) ? kLabelIndentedRect : kLabelRect;
is semantically equivalent to
if(inPseudoEditMode) {
label.frame = kLabelIndentedRect;
} else {
label.frame = kLabelRec...
Check if two lists are equal [duplicate]
...
Use SequenceEqual to check for sequence equality because Equals method checks for reference equality.
var a = ints1.SequenceEqual(ints2);
Or if you don't care about elements order use Enumerable.All method:
var a = ints1.All(ints2.Contains);
The second version also re...
What are the differences between Rust's `String` and `str`?
Why does Rust have String and str ? What are the differences between String and str ? When does one use String instead of str and vice versa? Is one of them getting deprecated?
...
Where does Chrome store extensions?
...ensions
Linux
~/.config/google-chrome/Default/Extensions/
MacOS
~/Library/Application\ Support/Google/Chrome/Default/Extensions
Chromium
~/.config/chromium/Default/Extensions
share
|
impr...
Regular expression for first and last name
For website validation purposes, I need first name and last name validation.
23 Answers
...
How does Java Garbage Collection work with Circular References?
From my understanding, garbage collection in Java cleans up some objects if nothing else is 'pointing' to that object.
8 An...
Concat all strings inside a List using LINQ
...
By using LINQ, this should work;
string delimiter = ",";
List<string> items = new List<string>() { "foo", "boo", "john", "doe" };
Console.WriteLine(items.Aggregate((i, j) => i + delimiter + j));
class descri...