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MongoDB: Combine data from multiple collections into one..how?
...collection called users_comments that contains the merged data and you can now use that. These reduced collections all have _id which is the key you were emitting in your map functions and then all of the values are a sub-object inside the value key - the values aren't at the top level of these red...
JavaScript closures vs. anonymous functions
...ree variable.
That free variable is called an upvalue of the closure F.
Now let's use this to figure out who uses closures and who doesn't (for the sake of explanation I have named the functions):
Case 1: Your Friend's Program
for (var i = 0; i < 10; i++) {
(function f() {
var i2...
Hibernate Error: org.hibernate.NonUniqueObjectException: a different object with the same identifier
...e with 10 rows based on a primary key combination (column 1 and column 2). Now, you have removed 5 rows from the table at some point of time. Now, if you try to add the same 10 rows again, while hibernate tries to persist the objects in database, 5 rows which were already removed will be added witho...
Renew Provisioning Profile
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I don't know what fixed it for me, but yes. I think I upgraded xCode or something. Sorry I can't be more precise...
– Tony Adams
Feb 29 '12 at 4:33
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Long-lasting FB access-token for server to pull FB page info
...n to see that it is set to Expires: Never!
That should do it. You should now have a Facebook Page Access Token that doesn't expire, unless:
You change your Facebook account password
You lose admin access for the target page
You delete or de-authorize your Facebook App
Any of these will cause t...
How to recover stashed uncommitted changes
...oing them in the wrong branch. You just want to take the changes you have now and "move" them to another branch.
This is the easy case, described above. Run git stash save (or plain git stash, same thing). Check out the other branch and use git stash apply. This gets git to merge in your earlie...
How to initialize a struct in accordance with C programming language standards
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@CutbertoOcampo I understand what happened now. The original question was asking for solutions in ANSI C, obviously he wanted answers for C89 only. In 2016 the question was edited and "ANSI C" was removed, which now makes it hard to understand why this answer and comm...
How to disable Google Chrome auto update?
Does anyone know how to disable Google Chrome for being automatic update itself, it cause my web application always change?
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Why there can be only one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT clause?
...TAMP and ON UPDATE
CURRENT_TIMESTAMP clauses. In addition, these clauses now can be used
with DATETIME column definitions. For more information, see Automatic
Initialization and Updating for TIMESTAMP and DATETIME.
http://dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-5.html
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Using async-await on .net 4
... http://blogs.msdn.com/b/bclteam/archive/2013/04/17/microsoft-bcl-async-is-now-stable.aspx.
You can read about the previous version here: http://blogs.msdn.com/b/lucian/archive/2012/04/24/async-targeting-pack.aspx.
As this pack is officially supported, I now believe the best option for targeting X...