大约有 15,461 项符合查询结果（耗时：0.0770秒） [XML]
A Regex that will never be matched by anything
...a simple literal that I "know" won't appear in my input turns out to be fastest, in Python. With a 5MB input string, and using this in a sub() operation, (?!x)x takes 21% longer, (?!()) is 16%, and ($^) 6% longer. May be significant in some cases, though not in mine.
– Peter ...
How to loop through an array containing objects and access their properties
...ed as a pure function.
2. Check if any of the elements in an array pass a test
const people = [
{name: 'John', age: 23},
{name: 'Andrew', age: 3},
{name: 'Peter', age: 8},
{name: 'Hanna', age: 14},
{name: 'Adam', age: 37}];
const anyAdult = people.some(person => person....
Get query string parameters url values with jQuery / Javascript (querystring)
...
Oops! ohh man, IE is not supported !! I have just tested on it. While Chrome, FF, Safari has no issue.
– Saurin
Jan 11 '18 at 13:49
1
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Behaviour of final static method
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public class Test { final static public void main(String... srik) { System.out.println("In main method"); ts(); } public static void ts() { Child c=new Child(); c.ts(); System.out.println("Test ts"); } } public cla...
C++ equivalent of java's instanceof
... There are many examples of reasonable uses of dynamic type testing. It's not usually preferred, but it has a place. (Otherwise, why would it or its equivalent appear in every major OO-language: C++, Java, Python, etc.?)
– Paul Draper
Feb 3 '13 a...
How to run the sftp command with a password from Bash script?
...password not saved in .bash_history or similar by doing the following:
vi test_script.sh
Add the following to your file:
#!/bin/sh
HOST=<yourhostname>
USER=<someusername>
PASSWD=<yourpasswd>
cd <base directory for your put file>
lftp<<END_SCRIPT
open sftp://$HOST
...
Stretch and scale CSS background
...image, rather than being evenly cropped on both sides (and centered). I've tested it in Firefox, Webkit, and Internet Explorer 8.
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Checking if a list is empty with LINQ
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I just wrote up a quick test, try this:
IEnumerable<Object> myList = new List<Object>();
Stopwatch watch = new Stopwatch();
int x;
watch.Start();
for (var i = 0; i <= 1000000; i++)
{
if (myList.Count() == 0) x = i;
}
...
What's the bad magic number error?
...ctory. Say if you create a new directory in django for seperating the unit tests into multiple files and place them in one directory then you also have to create the __init__.py file beside all the other files in new created test directory. otherwise it can give error like
Traceback (most recent ca...
Enum “Inheritance”
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You can use reflection: void Test() { foreach (System.Reflection.PropertyInfo pi in typeof(Consume).GetProperties()) { Console.WriteLine(pi.Name); } }
– mnieto
Jun 5 ...