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What is the difference between a.getClass() and A.class in Java?
...
time (getClass()) :23506 ns
time (.class):23838 ns
And switching the order of the calls will even result in getClass() being faster.
import java.util.LinkedHashMap;
public class PerfomanceClass {
public static void main(String[] args) {
long time2 = System.nanoTime();
Class class2 =...
sys.argv[1] meaning in script
...m :
user_args = sys.argv[:-2]
Suppose you want the arguments in reverse order :
user_args = sys.argv[::-1]
Hope this helps.
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Passing a String by Reference in Java?
...t because it is the only general one. It allows also passing boolean, int, etc. Can you please explain a little bit more in details the performance of this solution - you claim that the first one is better from a performance point of view.
– meolic
Apr 26 '19 a...
Check if a given key already exists in a dictionary and increment it
...ward suggests "the overhead in Exception handling in languages is always a order of magnitude greater than the hash table lookup that determines whether the item exists or not in the dictionary", while you are saying "It also avoids the duplicate key lookup in the dictionary ... if lookup is expensi...
How to append to a file in Node?
...tten by timestamp. You can test with example, set 1000 in place of 100000, order will be random, depends on access to file.
If you want to append to a file, you must use a writable stream like this:
var stream = fs.createWriteStream("append.txt", {flags:'a'});
console.log(new Date().toISOString())...
What does iterator->second mean?
...lue" would have been more intuitive than "first" and "second", which imply ordering.
– ahoffer
Sep 5 '18 at 17:16
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GitHub clone from pull request?
...
The easiest way to do that is like this:
git fetch origin pull/2/head
git checkout -b pullrequest FETCH_HEAD
You will now be on a new branch that is on the state of the pull request.
You might want to set up an alias by running
git config --global alias.pro '!f() { g...
How can I concatenate two arrays in Java?
...st but I prefer clean code that doesn't require suppression of warnings in order to remove warnings
– beaudet
Jun 27 '19 at 21:18
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Bootstrap Modal immediately disappearing
...ppen. However, the button was in a <form> that was temporarily just fetching the same page.
I fixed this by adding type="button" to the button element, so that it wouldn't submit the form when clicked.
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Request format is unrecognized for URL unexpectedly ending in
...Value)
at BitMeter2.frmMain.tickProcessing(Boolean fromTimerEvent)
In order to fix this error I had to add the ScriptHandlerFactory lines to web.config:
<system.webServer>
<handlers>
<remove name="ScriptHandlerFactory" />
<add name="ScriptHandlerFactory" ...