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How does OpenID authentication work?
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Why does [5,6,8,7][1,2] = 8 in JavaScript?
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What does “The APR based Apache Tomcat Native library was not found” mean?
...brary on Ubuntu server with:
sudo apt-get install libtcnative-1
If that does not work tomcat-native needs to be installed
Install Oracle java7:
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer
sudo apt-get install oracle-java7-set-de...
What does extern inline do?
...rsion, though it might generate a file static one. The one-definition rule does not apply, since there is never an emitted external symbol nor a call to one.
C99 (or GNU99):
inline: like GNU89 "extern inline"; no externally visible function is emitted, but one might be called and so must exist
e...
Prefer composition over inheritance?
...ess cooked once you derive from TypeA.
My acid test for the above is:
Does TypeB want to expose the complete interface (all public methods no less) of TypeA such that TypeB can be used where TypeA is expected? Indicates Inheritance.
e.g. A Cessna biplane will expose the complete interface of...
What is the difference between 'git pull' and 'git fetch'?
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In the simplest terms, git pull does a git fetch followed by a git merge.
You can do a git fetch at any time to update your remote-tracking branches under refs/remotes/<remote>/.
This operation never changes any of your own local branches under refs/h...
INSERT INTO vs SELECT INTO
...ferent things. Use INSERT when the table exists. Use SELECT INTO when it does not.
Yes. INSERT with no table hints is normally logged. SELECT INTO is minimally logged assuming proper trace flags are set.
In my experience SELECT INTO is most commonly used with intermediate data sets, like #temp...
What does “S3 methods” mean in R?
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So according to your answer, does this means that median is an S3 method and print is not an S3 (maybe S4)?
– Ankit Agrawal
Sep 3 at 7:00
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How does this JavaScript/jQuery syntax work: (function( window, undefined ) { })(window)?
...console.log(window);
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...
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var window = 10;
})();
What does the console log? The value of window object right? Wrong! 10? Wrong! It logs undefined. Javascript interpreter (or JIT compiler) rewrites it this way -
(function() {
var window; //and every other var in this functio...
How can I set the max-width of a table cell using percentages?
The above does not work. How can I set the max-width of a table cell using percentages?
4 Answers
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