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When should I choose Vector in Scala?
...linear.
List on the other hand just provides linear iteration and constant time prepend, decomposition in head/tail. Everything else takes in general linear time.
This might look like as if Vector was a good replacement for List in almost all cases, but prepend, decomposition and iteration are ofte...
How do I check whether a checkbox is checked in jQuery?
... again, How to check whether a checkbox is checked in jQuery? at any given time with or without clicking the checkbox and in jQuery.
– Marc Compte
Jul 6 '17 at 10:58
add a com...
How do I run a Python program?
...
Sometimes if python ver. 3 has been installed you may have to type "python3" note that the ".exe" extension is not always required. Also it doesn't make any difference whether Windows is set up to use file extensions or not, that...
How can I run dos2unix on an entire directory? [closed]
...type f -print0 | xargs -0 -n 1 -P 4 dos2unix
This will pass 1 file at a time, and use 4 processors.
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How can I prevent SQL injection in PHP?
...f using prepared statements is that if you execute the same statement many times in the same session it will only be parsed and compiled once, giving you some speed gains.
Oh, and since you asked about how to do it for an insert, here's an example (using PDO):
$preparedStatement = $db->prepare(...
C# difference between == and Equals()
...ison is object. It looks like operator overloads are determined at compile time and at compile time all it knows is that the left hand side is an object.
– MikeKulls
Jul 15 '12 at 22:53
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Python - doctest vs. unittest [closed]
...y? I like keeping docstrings somewhat shorter and more to the point. Sometimes test cases help clarify a docstring. Most of the time, the application's test cases are too long for a docstring.
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What is the best open-source java charting library? (other than jfreechart) [closed]
...e need for an internet conection, though I cant remenber when was the last time I was disconnected. ;-)
– fccoelho
Nov 6 '08 at 8:01
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How to get the last char of a string in PHP?
...0, negative string offsets are also supported.
So, if you keep up with the times, you can access the last character in the string like this:
$str[-1]
DEMO
At the request of a @mickmackusa, I supplement my answer with possible ways of application:
<?php
$str='abcdef';
var_dump($str[-2]); // ...
When to use PNG or JPG in iPhone development?
... I've yet to see any data on JPEG vs PNG vs iPNG decode performance. Sometimes the more-compressed format is better due to reduced I/O required; I'm not sure how fast the iPhone's flash drive is. And I definitely wouldn't say PNG decompression requires "very little" energy; the Other.artwork file ...