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What is the dependency inversion principle and why is it important?
What is the dependency inversion principle and why is it important?
16 Answers
16
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When should one use final for method parameters and local variables?
...rameters and local variables, not final methods or classes. For constants, it makes obvious sense.
15 Answers
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C++ project organisation (with gtest, cmake and doxygen)
...g a simple vector class in C++. However I would like to get in to good habits from the start rather than trying to modify my workflow later on.
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ArrayList initialization equivalent to array initialization [duplicate]
I am aware that you can initialize an array during instantiation as follows:
8 Answers
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Adding a directory to $LOAD_PATH (Ruby)
...TH (or $:). I see the advantages of doing this in case you're not working with a gem. One seems more verbose than the other, obviously, but is there a reason to go with one over the other?
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How does a Java HashMap handle different objects with the same hash code?
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A hashmap works like this (this is a little bit simplified, but it illustrates the basic mechanism):
It has a number of "buckets" which it uses to store key-value pairs in. Each bucket has a unique number - that's what identifies the bucket. When you put a key-v...
SET NOCOUNT ON usage
...ET NOCOUNT ON only saves 9-bytes per query while the text "SET NOCOUNT ON" itself is a whopping 14 bytes. I used to think that 123 row(s) affected was returned from server in plain text in a separate network packet but that's not the case. It's in fact a small structure called DONE_IN_PROC embedded ...
Creating a config file in PHP
...imple but elegant way is to create a config.php file (or whatever you call it) that just returns an array:
<?php
return array(
'host' => 'localhost',
'username' => 'root',
);
And then:
$configs = include('config.php');
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Is it possible to embed animated GIFs in PDFs?
Is it possible to embed animated GIFs in PDFs? And how might I go about such a thing? are there any dangers I should be aware of?
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How to hide element using Twitter Bootstrap and show it using jQuery?
...Bootstrap 4.x
Bootstrap 4.x uses the new .d-none class. Instead of using either .hidden, or .hide if you're using Bootstrap 4.x use .d-none.
<div id="myId" class="d-none">Foobar</div>
To show it: $("#myId").removeClass('d-none');
To hide it: $("#myId").addClass('d-none');
To toggle ...