大约有 44,000 项符合查询结果（耗时：0.0467秒） [XML]
What requirement was the tuple designed to solve?
...e/use a tuple in a very efficient and simple way:
var person = (Id:"123", Name:"john"); //create tuble with two items
Console.WriteLine($"{person.Id} name:{person.Name}") //access its fields
Returning more than one value from a method:
public (double sum, double average) ComputeSu...
What are carriage return, linefeed, and form feed?
...
printf("123\f456\f789"); shows /><bold>123456789</bold> on console.
– Mayur
Feb 27 '19 at 6:02
...
Memoization in Haskell?
... f does what you mean for small values of f by calling, for example: fix f 123 = 144
We could memoize this by defining:
f_list :: [Int]
f_list = map (f faster_f) [0..]
faster_f :: Int -> Int
faster_f n = f_list !! n
That performs passably well, and replaces what was going to take O(n^3) time...
Python's most efficient way to choose longest string in list?
...the Python documentation itself, you can use max:
>>> mylist = ['123','123456','1234']
>>> print max(mylist, key=len)
123456
share
|
improve this answer
|
...
Automatically start forever (node) on system restart
...
123
You can use forever-service for doing this.
npm install -g forever-service
forever-service i...
Error: Jump to case label
...in the { }
dostuff(i);
break;
}
case 2:
dostuff(123); // Now you cannot use i accidentally
}
Edit
To further elaborate, switch statements are just a particularly fancy kind of a goto. Here's an analoguous piece of code exhibiting the same issue but using a goto instead ...
How to use redis PUBLISH/SUBSCRIBE with nodejs to notify clients when data values change?
...
123
OLD only use a reference
Dependencies
uses express, socket.io, node_redis and last but not l...
Remove file extension from a file name string
...
String.LastIndexOf would work.
string fileName= "abc.123.txt";
int fileExtPos = fileName.LastIndexOf(".");
if (fileExtPos >= 0 )
fileName= fileName.Substring(0, fileExtPos);
share
|
...
Android: Difference between Parcelable and Serializable?
...ited Nov 27 '15 at 19:06
hichris123
9,5151212 gold badges5050 silver badges6666 bronze badges
answered Mar 12 '14 at 11:44
...
JavaScript validation for empty input field
...
123
<script type="text/javascript">
function validateForm() {
var a = document.f...