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The maximum value for an int type in Go
...s additional math and bounds-checking to be performed by the processor, in order to emulate the larger or smaller integer. With that in mind, be aware that the performance of the processor (or compiler's optimised code) is almost always going to be better than adding your own bounds-checking code, s...
Fastest way to check if string contains only digits
... testing (always profile because the results depend on hardware, versions, order, etc.):
static bool isDigitsFr(string s) { if (s == null || s == "") return false; for (int i = 0; i < s.Length; i++) if (s[i] < '0' || s[i] > '9') return false; return true; }
static bool isDigitsFu(string s)...
UITextField - capture return button event
...d "return" keyboard button while editing UITextField?
I need to do this in order to dismiss keyboard when user pressed the "return" button.
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SQL Server IN vs. EXISTS Performance
...e).
Both forms can be converted to join forms internally, have the join order reversed, and run as loop, hash or merge--based on the estimated row counts (left and right) and index existence in left, right, or both sides.
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jQuery duplicate DIV into another DIV
...
You'll want to use the clone() method in order to get a deep copy of the element:
$(function(){
var $button = $('.button').clone();
$('.package').html($button);
});
Full demo: http://jsfiddle.net/3rXjx/
From the jQuery docs:
The .clone() method performs ...
Facebook App: localhost no longer works as app domain
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Solution using Firebase
In order to get this working on localhost, port 3000 I did the following:
Create App
Now Select "+ Create Test App" from the arrow dropdown (top left).
Add localhost to App Domains
Add http://localhost:3000/ to ...
What is so bad about singletons? [closed]
...it to testing since you can end up with a situation where tests need to be ordered which is a big no no for unit tests. Why? Because each unit test should be independent from the other.
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In log4j, does checking isDebugEnabled before logging improve performance?
...nd once in debug() method. The cost of invoking isDebugEnabled() is in the order of 5 to 30 nanoseconds which should be negligible for most practical purposes. Thus, option 2 is not desirable because it pollutes your code and provides no other gain.
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Remove elements from collection while iterating
...ection, which would imply a second iteration work to look for this item in order to remove it.
I think it is worth mentioning that the remove method of the Iterator interface is marked as "optional" in Javadocs, which means that there could be Iterator implementations that throw UnsupportedOperatio...
Python List vs. Array - when to use?
...h element of an array in a constant time, whereas in linked list, it takes order 'n' in the worst case. What's the lookup time of i'th element in a python list?
– Nithish Inpursuit Ofhappiness
Jul 19 '17 at 2:16
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