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Difference between & and && in Java? [duplicate]
I was just wondering what the difference between & and && is?
A few days I wrote a condition for an if statement the looked something like:
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Rails “validates_uniqueness_of” Case Sensitivity
...validates_uniqueness_of :name, :case_sensitive => false does the trick, but you should keep in mind that validates_uniqueness_of does not guarantee uniqueness if you have multiple servers/server processes (e.g. running Phusion Passenger, multiple Mongrels, etc) or a multi-threaded server. That's...
How can I get the full object in Node.js's console.log(), rather than '[Object]'?
When debugging using console.log() , how can I get the full object?
17 Answers
17
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Why should text files end with a newline?
... text files should end with a newline. I've known of this "rule" for years but I've always wondered — why?
18 Answers
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How do I get an animated gif to work in WPF?
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I couldn't get the most popular answer to this question (above by Dario) to work properly. The result was weird, choppy animation with weird artifacts.
Best solution I have found so far:
https://github.com/XamlAnimatedGif/WpfAnimatedGif
You can install it with NuGet
PM> Install...
Hashing a file in Python
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TL;DR use buffers to not use tons of memory.
We get to the crux of your problem, I believe, when we consider the memory implications of working with very large files. We don't want this bad boy to churn through 2 gigs of ram for a 2 g...
What is the difference between indexOf() and search()?
Being fairly new to JavaScript, I'm unable to discern when to use each of these.
8 Answers
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Ruby class types and case statements
What is the difference between
5 Answers
5
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How to convert list of tuples to multiple lists?
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The built-in function zip() will almost do what you want:
>>> zip(*[(1, 2), (3, 4), (5, 6)])
[(1, 3, 5), (2, 4, 6)]
The only difference is that you get tuples instead of lists. You can convert them to lists using
ma...
How to create GUID / UUID?
I'm trying to create globally-unique identifiers in JavaScript. I'm not sure what routines are available on all browsers, how "random" and seeded the built-in random number generator is, etc.
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