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What is a sealed trait?
...ed in 'Programming in Scala', but sealed traits are not.
Where can I find more information about a sealed trait?
6 Answers
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100% width Twitter Bootstrap 3 template
...e that I want to code with bootstrap. The first column begins at the left corner and I have a Google map the stretches to the rightmost. I thought I could do this with container-fluid class, but that doesn't seem to be available any longer. I have no idea how to achieve that layout with bootstrap ...
Why call git branch --unset-upstream to fixup?
I'm more of a novice when it comes to advanced operations in git. I maintain my blog using the blogging framework Octopress . Though Octopress is not under any development since 2011, it serves my purpose well and so I haven't thought of changing anything so far.
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How to set up a git project to use an external repo submodule?
... MyWebApp that already has a github repo
You want to use the jquery repository in your project
You want to pull the jquery repo into your project as a submodule.
Submodules are really, really easy to reference and use. Assuming you already have MyWebApp set up as a repo, from terminal issue these ...
What is digest authentication?
...e main difference is that it doesn't require sending the username and password across the wire in plaintext. It is also immune to replay-attacks, as it uses a one-time number from the server.
The server gives the client a one-time use number (a nonce) that it combines with the username, realm, pass...
How can I tell which homebrew formulae are upgradable?
I know when I brew update , it lists all ==> Updated Formulae , but when I've updated several times without running brew upgrade , how do I get a list of all apps that could be upgraded?
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How to set a timer in android
What is the proper way to set a timer in android in order to kick off a task (a function that I create which does not change the UI)?
Use this the Java way:
http://docs.oracle.com/javase/1.5.0/docs/api/java/util/Timer.html
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What is maximum query size for mysql?
What is maximum query size for mysql? Some times the server stops working when I fire a too long query.
2 Answers
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Why does (“foo” === new String(“foo”)) evaluate to false in JavaScript?
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"foo" is a string primitive. (this concept does not exist in C# or Java)
new String("foo") is boxed string object.
The === operator behaves differently on primitives and objects.
When comparing primitives (of the same type), === will return true if they both have the same value.
When c...
What does the smiley face “:)” mean in CSS?
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From an article at javascriptkit.com, that's applied for IE 7 and earlier versions:
if you add a non-alphanumeric character such as an asterisk (*) immediately before a property name, the property will be applied in IE and not in other browsers.
Also there's a hack for <...