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Counting array elements in Python [duplicate]
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Especially when both of us mentioned that is was bad form. Understanding what length "really" does is important in it's own right.
– Gregg Lind
Oct 14 '08 at 17:11
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How do I pass a unique_ptr argument to a constructor or a function?
...lways passes unique_ptr values by rvalue reference (for instance when transforming them into shared_ptr). The rationale for that might be that it is slightly more efficient (no moving to temporary pointers is done) while it gives the exact same rights to the caller (may pass rvalues, or lvalues wrap...
What's invokedynamic and how do I use it?
...ava 8 translates some of the lambdas using invokedynamic which makes it performant (compared to wrap them in an anonymous inner-class which was almost the only choice before introducing invokedynamic). Most probably a lot of functional programming languages on top of JVM will opt to compile to this ...
Counting the number of option tags in a select tag in jQuery
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You can use either length property and length is better on performance than size.
$('#input1 option').length;
OR you can use size function like (removed in jQuery v3)
$('#input1 option').size();
$(document).ready(function(){
console.log($('#input1 option').size());
console....
How to select the last record of a table in SQL?
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Without any further information, which Database etc the best we can do is something like
Sql Server
SELECT TOP 1 * FROM Table ORDER BY ID DESC
MySql
SELECT * FROM Table ORDER BY ID DESC LIMIT 1
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Python style - line continuation with strings? [duplicate]
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The problem is when assigning to a variable, this form looks too similar to a tuple. If you add a comma between the strings, it's a tuple with two strings.
– Eric
Mar 23 '19 at 1:41
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Recommended way to insert elements into map [duplicate]
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assert( myMap.find( key )->second == value ); // post-condition
This form will overwrite any existing entry.
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Angular JS: What is the need of the directive’s link function when we already had directive’s contro
I need to perform some operations on scope and the template. It seems that I can do that in either the link function or the controller function (since both have access to the scope).
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CMake not able to find OpenSSL library
... Works like a charm, thanks! I was able to extract the zip file downloaded form the link you mentioned. After that I just added -DOPENSSL_ROOT-DIR="C:/Path/To/Extracted/Files".
– Charlie Vieillard
Apr 9 '15 at 8:05
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How to navigate a few folders up?
...}
return file;
}
Note: Application.StartupPath is usually used in WinForms applications, but it works in console applications as well; however, you will have to set a reference to the System.Windows.Forms assembly. You can replace Application.StartupPath by
Path.GetDirectoryName(Assembly.GetEx...