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Is Ruby pass by reference or by value?

...itional terminology, Ruby is strictly pass-by-value. But that's not really what you're asking here. Ruby doesn't have any concept of a pure, non-reference value, so you certainly can't pass one to a method. Variables are always references to objects. In order to get an object that won't change out ...
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What is the Java equivalent of PHP var_dump?

... you like, or to use reflection to inspect the object (in a way similar to what debuggers do). The advantage of using reflection is that you won't need to modify your individual objects to be "analysable", but there is added complexity and if you need nested object support you'll have to write that...
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What's the best practice to round a float to 2 decimals? [duplicate]

I'm using eclipse + Android SDK. 7 Answers 7 ...
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What is the difference between MOV and LEA?

I would like to know what the difference between these instructions is: 12 Answers 12 ...
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What is the difference between an IntentService and a Service? [duplicate]

Can you please help me understand what the difference between an IntentService and a Service is? 8 Answers ...
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What do numbers using 0x notation mean?

What does a 0x prefix on a number mean? 5 Answers 5 ...
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CATALINA_OPTS vs JAVA_OPTS - What is the difference?

... "run" command is executed So why are there two different variables? And what's the difference? Firstly, anything specified in EITHER variable is passed, identically, to the command that starts up Tomcat - the "start" or "run" command - but only values set in JAVA_OPTS are passed to the "stop" co...
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What is the difference between min SDK version/target SDK version vs. compile SDK version?

What are the differences between "min sdk version/target sdk version" and "compile sdk version"? I know what min and target sdk means, but what does compile sdk version mean? ...
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What methods of ‘clearfix’ can I use?

...ght of the floats in order to contain them. There is no clearance involved whatsoever - that being said, you can still choose to clear, or not clear, the floats within the container depending on your layout. – BoltClock♦ Jul 29 '12 at 13:59 ...
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What is a clean, pythonic way to have multiple constructors in Python?

...*args and **kwargs are an overkill. At most constructors, you want to know what your arguments are. – user989762 Apr 28 '18 at 9:26 1 ...