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How to list all methods for an object in Ruby?

...r", "original_table_name", "field_type", "authenticate", "set_default_order", "id_name?", "id_name_column", "original_locking_column", "default_order", "subclass_associations", ... # I ran the statements in the console. Note that the methods created as a result of the (many) has_man...
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Undefined, unspecified and implementation-defined behavior

... are described in this International Standard as unspecified (for example, order of evaluation of arguments to a function). Where possible, this International Standard defines a set of allowable behaviors. These define the nondeterministic aspects of the abstract machine. Certain other operations ar...
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Why is @autoreleasepool still needed with ARC?

...ile time. This is, just by reading the code, even before it is run! :) In order to do so there is only one condition: We MUST follow the rules, otherwise the compiler would not be able to automate the process at compile time. So, to ensure that we never break the rules, we are not allowed to explic...
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What are file descriptors, explained in simple terms?

...alf of shell when the program starts. FD's are allocated in the sequential order, meaning the lowest possible unallocated integer value. FD's for a particular process can be seen in /proc/$pid/fd (on Unix based systems). sh...
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Managing constructors with many parameters in Java

...t/optional arguments without needing to keep track of any kind of argument order, since any order of those calls will work equally well. share | improve this answer | follow ...
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REST API Best practices: Where to put parameters? [closed]

...mysite.com/article/?query=Obama (subset) is a filter, and so is /article/5?order=backwards (modification). Think about what it does, not just what it's called! If "view" determines output format, then it is a filter (mysite.com/article/5?view=pdf) because it returns a modification of the found res...
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Can you Run Xcode in Linux?

... Do you need to be able to run the GUI editors in order to build apps with Xcode or can it be done from the CLI? – Jose V Mar 13 '18 at 7:02 add a com...
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Is gettimeofday() guaranteed to be of microsecond resolution?

...s the CPU's execution buffer so that the timings aren't affected by out-of-order execution. execute the rdtsc (read timestamp) execution. This fetches the number of machine cycles executed since the processor was reset. This is a 64-bit value, so with current CPU speeds it will wrap around every 1...
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What is a sealed trait?

...ed tree, for instance. You can write this: sealed abstract class Tree[T : Ordering] but you cannot do this: sealed trait Tree[T : Ordering] since context bounds (and view bounds) are implemented with implicit parameters. Given that traits can't receive parameters, you can't do that. Personall...
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Hiding a password in a python script (insecure obfuscation only)

...ett but like Youarefunny said, you would have to raise setuid on python in order to give the script root access to the password file? – pyramidface Dec 10 '15 at 22:47 add a c...