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In Windows Azure: What are web role, worker role and VM role?
...or a timer. Maybe you have on-demand tasks such as thumbnail-generation of photos, or calculations based on user input. These don't need externally-available endpoints. You can push your requests to a queue, and then have a task running which simply feeds off this queue (and you can scale this proce...
How to match all occurrences of a regex
...t; ["54", "1", "3"]
Regex can be a named group as well.
string = 'group_photo.jpg'
regex = /\A(?<name>.*)\.(?<ext>.*)\z/
string.scan(regex).flatten
You can also use gsub, it's just one more way if you want MatchData.
str.gsub(/\d/).map{ Regexp.last_match }
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What are the different usecases of PNG vs. GIF vs. JPEG vs. SVG?
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JPEG - Lossy / Direct
JPEGs images were designed to make detailed photographic images as small as possible by removing information that the human eye won't notice. As a result it's a Lossy format, and saving the same file over and over will result in more data being lost over time. It has a...
How do I parse JSON with Objective-C?
...NSLog(@"first_name:%@",[user objectForKey:@"first_name"]);
NSLog(@"photo_url:%@",[user objectForKey:@"photo_url"]);
}
}
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Heroku free account limited?
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Here is the problem I had....
"We have photo and file upload for several features in our app, but they do not save.
I have read on stackoverflow that "You are limited to 100MB of disk space, but you are not permitted to save any files (including user uploads) to ...
DateTime vs DateTimeOffset
...? It's all about perspective. Let's use an analogy - we'll pretend to be photographers.
Imagine you are standing on a calendar timeline, pointing a camera at a person on the instantaneous timeline laid out in front of you. You line up your camera according to the rules of your timezone - which c...
Facebook API - How do I get a Facebook user's profile image through the Facebook API (without requir
..._here/picture
Replace userid_here with id of the user you want to get the photo of. You can also use HTTPS as well.
You can use the PHP's file_get_contents function to read that URL and process the retrieved data.
Resource:
http://developers.facebook.com/docs/api
Note: In php.ini, you need to m...
What kind of Garbage Collection does Go use?
...es at least have predictable and controllable heap growth behavior.
(Photo from GopherCon 2015 presentation "Go GC: Solving the Latency Problem in Go 1.5")
The sole tuning knob for the STW collector was “GOGC”, the relative heap growth between collections. The default setting, 100%, trigg...
Hex representation of a color with alpha channel?
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You could try putting the hex color into the color picker of GIMP or photo shop to get the RGB value and then using the alpha value. eg. red is #FF0000 or rgb(255,0,0) if you want red with an alpha value of .5 then rgba(255,0,0,.5).
Maybe not exactly what you wanted but hopefully helps.
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Should image size be defined in the img tag height/width attributes or in CSS? [duplicate]
... the page. This way you could define a class of image (i.e. 'Thumbnail', 'Photo', 'Large', etc) and assign it a constant size. This will help when you end up with images requiring the same placement across multiple pages.
Like this:
In your header:
<link type="text/css" rel="stylesheet" href...