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Undo git pull, how to bring repos to old state
...do the merge step, but probably not the fetch (doesn't make a lot of sense and shouldn't be necessary).
To undo the merge, use git reset --hard to reset the local repository to a previous state; use git-reflog to find the SHA-1 of the previous state and then reset to it.
Warning
The commands li...
What is JAXB and why would I use it? [closed]
...am curious to see what Stack Overflow users think the use case is for JAXB and what makes it a good or a bad solution for that case.
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What is the difference between related SQLite data-types like INT, INTEGER, SMALLINT and TINYINT?
... has no data types, there are storage classes in a manifest typing system, and yeah, it's confusing if you're used to traditional RDBMSes. Everything, internally, is stored as text. Data types are coerced/converted into various storage locations based on affinities (ala data types assigned to column...
How do sessions work in Express.js with Node.js?
...lient, with a key (which the server will use to retrieve the session data) and a hash (which the server will use to make sure the cookie data hasn't been tampered with, so if you try and change a value the cookie will be invalid)
The session data, as opposed to some frameworks (e.g. Play Framework!)...
How to resize the iPhone/iPad Simulator?
...ke one third the size of the real iPad screen) on my 23" Full-HD screen (and also on the 15" MacBook Pro ).
11 Answers
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Face recognition Library [closed]
...acial Recognition SDK. This is a company founded by a University Professor and as such their website looks unprofessional. There's no pricing information or demo that you can download. You'll need to contact them for pricing information.
NeuroTechnology - Information on their Facial Recognition SDK....
How do I perform an IF…THEN in an SQL SELECT?
...
The CASE statement is the closest to IF in SQL and is supported on all versions of SQL Server.
SELECT CAST(
CASE
WHEN Obsolete = 'N' or InStock = 'Y'
THEN 1
ELSE 0
END AS bit) as Saleable,...
How do I check if an object has a specific property in JavaScript?
...king for. If you want to know if an object physically contains a property (and it is not coming from somewhere up on the prototype chain) then object.hasOwnProperty is the way to go. All modern browsers support it. (It was missing in older versions of Safari - 2.0.1 and older - but those versions of...
Why charset names are not constants?
Charset issues are confusing and complicated by themselves, but on top of that you have to remember exact names of your charsets. Is it "utf8" ? Or "utf-8" ? Or maybe "UTF-8" ? When searching internet for code samples you will see all of the above. Why not just make them named constants and use ...
How to use WeakReference in Java and Android development?
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Using a WeakReference in Android isn't any different than using one in plain old Java. Here is a great guide which gives a detailed explanation: Understanding Weak References.
You should think about using one whenever you need a reference to an obj...