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Best way to change the background color for an NSView
...s with a partially- (or fully-)transparent color, use NSRectFillUsingOperation developer.apple.com/mac/library/documentation/Cocoa/Reference/… with the NSCompositeSourceOver operation.
– Peter Hosey
Jun 3 '10 at 6:01
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Converting stream of int's to char's in java
...t. He is using Reader's read method: java.sun.com/j2se/1.4.2/docs/api/java/io/Reader.html#read() The question he is asking is how to convert value returned by this method into char.
– Vanuan
May 7 '09 at 21:43
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Working with README.md on github.com [closed]
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The markup in question is coincidentally called Markdown, created by John Gruber, author of the Daring Fireball blog. The original source of Markdown can be found at Daring Fireball - Markdown.
There are many Markdown dialects, the document...
Best way to convert strings to symbols in hash
... you can use:
my_hash.transform_keys(&:to_sym)
Using older Ruby version? Here is a one-liner that will copy the hash into a new one with the keys symbolized:
my_hash = my_hash.inject({}){|memo,(k,v)| memo[k.to_sym] = v; memo}
With Rails you can use:
my_hash.symbolize_keys
my_hash.deep_sym...
How to check if an NSDictionary or NSMutableDictionary contains a key?
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That's not possible. You can't add nil to a NSDictionary. You would have to use [NSNull null] instead.
– Ole Begemann
May 6 '10 at 21:39
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Check if an element's content is overflowing?
...he example you can find on http://dabblet.com/gist/2462915
And an explanation you can find here: http://lea.verou.me/2012/04/background-attachment-local/.
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What is an “unwrapped value” in Swift?
I'm learning Swift for iOS 8 / OSX 10.10 by following this tutorial , and the term " unwrapped value " is used several times, as in this paragraph (under Objects and Class ):
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How do you print out a stack trace to the console/log in Cocoa?
I'd like to log the call trace during certain points, like failed assertions, or uncaught exceptions.
6 Answers
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Is char signed or unsigned by default?
In the book "Complete Reference of C" it is mentioned that char is by default unsigned.
7 Answers
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Object.watch() for all browsers?
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(Sorry for the cross-posting, but this answer I gave to a similar question works fine here)
I have created a small object.watch shim for this a while ago. It works in IE8, Safari, Chrome, Firefox, Opera, etc.
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