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string.Join on a List or other type
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A typical optimization is to append the delimiter without testing, then remove the last character once you get out of the loop.
– Steven Sudit
Aug 31 '10 at 16:15
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Inserting HTML into a div
... can use insertAdjacentHTML - however I dig into and make some performance tests - (2019.09.13 Friday) MacOs High Sierra 10.13.6 on Chrome 76.0.3809 (64-bit), Safari 12.1.2 (13604.5.6), Firefox 69.0.0 (64-bit) ). The test F is only for reference - it is out of the question scope because we need to i...
Python - Passing a function into another function
... in your program so you can just pass them to other functions easily:
def test ():
print "test was invoked"
def invoker(func):
func()
invoker(test) # prints test was invoked
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impro...
Match multiline text using regular expression
...s pattern
Thus the problem is with the regex. Try the following.
String test = "User Comments: This is \t a\ta \ntest\n\n message \n";
String pattern1 = "User Comments: [\\s\\S]*^test$[\\s\\S]*";
Pattern p = Pattern.compile(pattern1, Pattern.MULTILINE);
System.out.println(p.matcher(test).find())...
Couldn't register with the bootstrap Server
...the hang when using the simulator, look at this thread: Strange Error When Testing Simulator
You may find this test of interest, as it will tell you ASAP if the only solution is to reboot now or not:
Open Terminal and run this command: ps -Ael | grep Z. If you get two entries, one "(clang)" and th...
Find when a file was deleted in Git
..._name, but neither explicitly indicates that the file was removed in the latest commit. This seems like a bug.
– Martin_W
Dec 23 '18 at 21:13
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sqlite database default time value 'now'
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i believe you can use
CREATE TABLE test (
id INTEGER PRIMARY KEY AUTOINCREMENT,
t TIMESTAMP
DEFAULT CURRENT_TIMESTAMP
);
as of version 3.1 (source)
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How can you detect the version of a browser?
...You can see what the browser says, and use that information for logging or testing multiple browsers.
navigator.sayswho= (function(){
var ua= navigator.userAgent, tem,
M= ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) || [];
if(/trident/i.test(M[1])){
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Is there a built-in method to compare collections?
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MS' TestTools and NUnit provide CollectionAssert.AreEquivalent
– tymtam
Jan 24 '13 at 0:55
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how to remove X-Powered-By in ExpressJS [duplicate]
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I just tested app.disable('custom1'); And it worked fine (it removed the header from server response). But then I commented out app.disable('custom1'); and the header appears again... Is this normal? I do no longer have the res.head...