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Why use the 'ref' keyword when passing an object?
...omething else, callers of the method will need to be coded to ensure they handle this possibility.
Also, when the parameter type is an object, then object variables always act as references to the object. This means that when the ref keyword is used you've got a reference to a reference. This allows...
Best way to iterate through a Perl array
Which is the best implementation(in terms of speed and memory usage) for iterating through a Perl array? Is there any better way? ( @Array need not be retained).
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SASS - use variables across multiple files
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You can do it like this:
I have a folder named utilities and inside that I have a file named _variables.scss
in that file i declare variables like so:
$black: #000;
$white: #fff;
then I have the style.scss file in which i import all of my other scss files like this:
// Utilit...
What is the easiest way to parse an INI file in Java?
...format of this ini files is the common windows style, with header sections and key=value pairs, using # as the character for commenting.
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Convert file: Uri to File in Android
What's the easiest way to convert from a file: android.net.Uri to a File in Android?
18 Answers
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Import existing source code to GitHub
...itbucket/github, then push up your source)
Create the remote repository, and get the URL such as git@github.com:/youruser/somename.git or https://github.com/youruser/somename.git
If your local GIT repo is already set up, skips steps 2 and 3
Locally, at the root directory of your source, git ini...
CSS force image resize and keep aspect ratio
I am working with images, and I ran across a problem with aspect ratios.
23 Answers
23...
Multiple “order by” in LINQ
I have two tables, movies and categories , and I get an ordered list by categoryID first and then by Name .
7 Answers...
Find object by id in an array of JavaScript objects
... '45').map(x => x.foo);
Side note: methods like find() or filter(), and arrow functions are not supported by older browsers (like IE), so if you want to support these browsers, you should transpile your code using Babel (with the polyfill).
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Can I use a :before or :after pseudo-element on an input field?
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:after and :before are not supported in Internet Explorer 7 and under, on any elements.
It's also not meant to be used on replaced elements such as form elements (inputs) and image elements.
In other words it's impossible with pur...