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How to add to an existing hash in Ruby
... => 'a', :b => 'Bee' }
Ruby on Rails confuses this somewhat by providing HashWithIndifferentAccess where it will convert freely between Symbol and String methods of addressing.
You can also index on nearly anything, including classes, numbers, or other Hashes.
hash = { Object => true, H...
How to Create Grid/Tile View?
...or example, I have some class .article, and I want to view this class as grid view. So I applied this style:
8 Answers
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seek() function?
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Never forget that when managing files, there'll always be a position inside that file where you are currently working on. When just open, that position is the beginning of the file, but as you work with it, you may advance.
seek will be useful to you when you need to walk along that open file, ju...
HTTP Basic Authentication - what's the expected web browser experience?
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To help everyone avoid confusion, I will reformulate the question in two parts.
First : "how can make an authenticated HTTP request with a browser, using BASIC auth?".
In the browser you can do a http basic auth first by waiting the prompt to ...
Best Practice - NSError domains and codes for your own project/app
...ge the meaning of existing codes, etc. It also helps me more specifically identify where the error came from. For example, if my StackKit framework generates an error in the com.stackkit domain, I know that it's a framework problem. However, if it generates an error in the NSURLErrorDomain, then ...
Can an AJAX response set a cookie?
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Yes, you can set cookie in the AJAX request in the server-side code just as you'd do for a normal request since the server cannot differentiate between a normal request or an AJAX request.
AJAX requests are just a special way of requesting to server, the server will need to respond ...
contenteditable, set caret at the end of the text (cross-browser)
...CaretAtEnd( document.querySelector('p') );
p{ padding:.5em; border:1px solid black; }
<p contentEditable>foo bar </p>
Placing the caret at the start is almost identical: it just requires changing the Boolean passed into the calls to collapse(). Here's an example that creates fun...
Sass - Converting Hex to RGBa for background opacity
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I swear I tried this AND the r,b,g functions and it didn't work. I was using dynamic colors from a Drupal back-end though which may have broken something. Still, sorted it in the end and the answer I found after further research +1
– Rick Donohoe
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Difference between os.getenv and os.environ.get
... os.putenv is broken, so you should default to os.environ.get simply to avoid the way os.getenv encourages you to use os.putenv for symmetry.
os.putenv changes the actual OS-level environment variables, but in a way that doesn't show up through os.getenv, os.environ, or any other stdlib way of insp...
What is the entry point of swift code execution?
...where. So what is the entry point of swift code execution and how is it decided?
5 Answers
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