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Is there a way to pass the DB user password into the command line tool mysqladmin?
...ently use the following but it ALWAYS prompts me to manually type the password. Is there any way to pass it in on the command line when launching the executable?
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class
...t; self opens up self's singleton class, so that methods can be redefined for the current self object (which inside a class or module body is the class or module itself). Usually, this is used to define class/module ("static") methods:
class String
class << self
def value_of obj
o...
Open a file with su/sudo inside Emacs
Suppose I want to open a file in an existing Emacs session using su or sudo , without dropping down to a shell and doing sudoedit or sudo emacs . One way to do this is
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How do I intercept a method call in C#?
For a given class I would like to have tracing functionality i.e. I would like to log every method call (method signature and actual parameter values) and every method exit (just the method signature).
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Is there a performance difference between i++ and ++i in C?
Is there a performance difference between i++ and ++i if the resulting value is not used?
14 Answers
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Check if null Boolean is true results in exception
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When you have a boolean it can be either true or false. Yet when you have a Boolean it can be either Boolean.TRUE, Boolean.FALSE or null as any other object.
In your particular case, your Boolean is null and the if statement triggers an implicit conversion to boolean th...
Which concurrent Queue implementation should I use in Java?
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Basically the difference between them are performance characteristics and blocking behavior.
Taking the easiest first, ArrayBlockingQueue is a queue of a fixed size. So if you set the size at 10, and attempt to insert an 11th element, the insert statement will block unt...
Creating Multifield Indexes in Mongoose / MongoDB
...ou call the index method on your Schema object to do that as shown here. For your case it would be something like:
mySchema.index({field1: 1, field2: 1}, {unique: true});
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How to generate a random string of a fixed length in Go?
I want a random string of characters only (uppercase or lowercase), no numbers, in Go. What is the fastest and simplest way to do this?
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How to handle initializing and rendering subviews in Backbone.js?
...e InfoView and the PhoneView entries are Child views.
Like I mentioned before, the biggest difference between these two categories is when they're allowed to render. In a perfect world, I want Parent views to only ever render once. It is up to their child views to handle any re-rendering when the m...