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Should I use alias or alias_method?
...ample given in that blog post, I simply want to alias a method to another within the same class. Which should I use? I always see alias used, but someone told me alias_method is better.
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Inheritance vs. Aggregation [closed]
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It's not a matter of which is the best, but of when to use what.
In the 'normal' cases a simple question is enough to find out if we need inheritance or aggregation.
If The new class is more or less as the original class. ...
Calling clojure from java
Most of the top google hits for "calling clojure from java" are outdated and recommend using clojure.lang.RT to compile the source code. Could you help with a clear explanation of how to call Clojure from Java assuming you have already built a jar from the Clojure project and included it in the cl...
Explain the use of a bit vector for determining if all characters are unique
I am confused about how a bit vector would work to do this (not too familiar with bit vectors). Here is the code given. Could someone please walk me through this?
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Is it possible to use jQuery .on and hover?
I have a <ul> that is populated with javascript after the initial page load. I'm currently using .bind with mouseover and mouseout .
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PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?
... this right regarding which to use for my PHP scripts for simple link definitions used throughout my site?
9 Answers
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Python function global variables?
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If you want to simply access a global variable you just use its name. However to change its value you need to use the global keyword.
E.g.
global someVar
someVar = 55
This would change the value of the global variable to 55. Otherwise it would just assign 55 to a local variable.
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What's the valid way to include an image with no src?
I have an image that I will dynamically populate with a src later with javascript but for ease I want the image tag to exist at pageload but just not display anything. I know <img src='' /> is invalid so what's the best way to do this?
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How to apply bindValue method in LIMIT clause?
...r having this problem before. Cast the value to an integer before passing it to the bind function. I think this solves it.
$fetchPictures->bindValue(':skip', (int) trim($_GET['skip']), PDO::PARAM_INT);
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Why does CSS not support negative padding?
...reason behind this? Is there any obstruction to the property that prevents it's use as such? Thanks for your answers.
7 Ans...