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How can I print the contents of a hash in Perl?
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Sorry, down vote from me for stuff that hijacks comments for actual functionality. A maintenance programmer could spend all day trying to work out why code like that was printing out unexpected stuff.
– MikeKulls
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Where is array's length property defined?
...only a single new array. Subarrays are shared.
All the members inherited from class Object; the only method of Object that is not inherited is its clone method.
Resources:
JLS - Arrays
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How to resize a custom view programmatically?
I am coding a custom view, extended from RelativeLayout, and I want to resize it programmatically, How can I do?
14 Answers...
Are unused CSS images downloaded?
...s downloaded in Chrome.
I use this technique for measuring traffic-levels from non-JS-enabled users, as Google Analytics fails us here. I prefer using the background CSS image rather than a normal <img...> tag, because I'm working under the (untested) theory that bots are less likely to grab...
What is a race condition?
...act. You have no real way of knowing.
In order to prevent race conditions from occurring, you would typically put a lock around the shared data to ensure only one thread can access the data at a time. This would mean something like this:
// Obtain lock for x
if (x == 5)
{
y = x * 2; // Now, not...
What are the differences between Helper and Utility classes?
...t is, it doesn't have any dependencies into your project and can be ported from project to project without breaking or becoming useless. Examples: Vector3, RandomNumberGenerator, StringMatcher, etc...
A "helper" seems to be any class whose design is to aid another class. These may or may not depend...
Most efficient way to increment a Map value in Java
...n't profiled memory usage in the different scenarios. I'd be happy to hear from anybody who has good insights into how the MutableInt and Trove methods would be likely to affect memory usage.
Personally, I find the MutableInt method the most attractive, since it doesn't require loading any third-pa...
Iterating over Java collections in Scala
... to iterate over the rows contained in the java.util.Iterator that I get from the Sheet class. I would like to use the iterator in a for each style loop, so I have been trying to convert it to a native Scala collection but will no luck.
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The data-toggle attributes in Twitter Bootstrap
...e case of Bootstrap, I'm not familiar with its inner workings, but judging from the name, I'd guess it's a hook to allow toggling of the visibility or perhaps a mode of the element it's attached to (such as the collapsable side bar on Octopress.org).
html5doctor has a good article on the data- attr...
Mocha / Chai expect.to.throw not catching thrown errors
...also be a big advantage of arrow functions. Arrow functions 'inherit' this from the scope they where created in. Often this can be an advantage, as it avoid the need for binding functions to their this object manually.
– Stijn de Witt
Jan 30 '19 at 18:43
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