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Why does this code using random strings print “hello world”?
...gorithms are specified for the class Random. Java implementations must use all the algorithms shown here for the class Random, for the sake of absolute portability of Java code."
– FThompson
Aug 27 '13 at 3:05
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PHP DateTime::modify adding and subtracting months
...s not a bug:
The current behavior is correct. The following happens internally:
+1 month increases the month number (originally 1) by one. This makes the date 2010-02-31.
The second month (February) only has 28 days in 2010, so PHP auto-corrects this by just continuing to count days from February...
In Python, when to use a Dictionary, List or Set?
...tion of unique elements, use a set. (For example, when you want the set of all the words used in a document).
When you want to collect an immutable ordered list of elements, use a tuple. (For example, when you want a (name, phone_number) pair that you wish to use as an element in a set, you would n...
How can I use NSError in my iPhone App?
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Well, what I usually do is have my methods that could error-out at runtime take a reference to a NSError pointer. If something does indeed go wrong in that method, I can populate the NSError reference with error data and return nil from the ...
connecting to MySQL from the command line
... authentication based on the user you logged in as, or not authenticate at all, but neither is a good idea, Specifying the password on the command line is even a slight security risk because it ends up in your command history and process tables. If you leave out the password it will ask you for it...
Looking for jQuery find(..) method that includes the current node
...it starts with the children of the current node. What is the best way to call a find operation that includes the current node in its matching algorithm? Looking through the docs nothing immediately jumps out at me.
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What is an IIS application pool?
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Application pools allow you to isolate your applications from one another, even if they are running on the same server. This way, if there is an error in one app, it won't take down other applications.
Additionally, applications pools allow ...
How do I get AWS_ACCESS_KEY_ID for Amazon?
I'm totally new to AWS.
5 Answers
5
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Should I use SVN or Git? [closed]
...r. It's decentralised to a point where people can track their own edits locally without having to push things to an external server.
SVN is designed to be more central where Git is based on each user having their own Git repo and those repos push changes back up into a central one. For that reason,...
setState vs replaceState in React.js
...ows out the current state, and replaces it with only what you provide. Usually setState is used unless you really need to remove keys for some reason; but setting them to false/null is usually a more explicit tactic.
While it's possible it could change; replaceState currently uses the object passe...