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How can I find the length of a number?
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var x = 1234567;
x.toString().length;
This process will also work forFloat Number and for Exponential number also.
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How do I match any character across multiple lines in a regular expression?
For example, this regex
24 Answers
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Creating C macro with ## and __LINE__ (token concatenation with positioning macro)
...lem is that when you have a macro replacement, the preprocessor will only expand the macros recursively if neither the stringizing operator # nor the token-pasting operator ## are applied to it. So, you have to use some extra layers of indirection, you can use the token-pasting operator with a recu...
How to get current CPU and RAM usage in Python?
...s (current CPU, RAM, free disk space, etc.) in Python? Bonus points for *nix and Windows platforms.
15 Answers
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How to manage REST API versioning with spring?
I've been searching how to manage a REST API versions using Spring 3.2.x, but I haven't find anything that is easy to maintain. I'll explain first the problem I have, and then a solution... but I do wonder if I'm re-inventing the wheel here.
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Does the 'mutable' keyword have any purpose other than allowing the variable to be modified by a con
... in a way that is visible through the public interface, like your locking example. Another example would be a class that computes a value the first time it is requested, and caches the result.
Since c++11 mutable can be used on a lambda to denote that things captured by value are modifiable (they...
What is the canonical way to trim a string in Ruby without creating a new string?
...ble itself if it was stripped.
According to Ruby standards, a method suffixed with an exclamation mark changes the variable in place.
Hope this helps.
Update: This is output from irb to demonstrate:
>> @title = "abc"
=> "abc"
>> @title.strip!
=> nil
>> @title
=> "abc"
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Maximum value for long integer
How can I assign the maximum value for a long integer to a variable, similar, for example, to C++'s LONG_MAX .
7 Answers
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How to get the changes on a branch in Git
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In the context of a revision list, A...B is how git-rev-parse defines it. git-log takes a revision list. git-diff does not take a list of revisions - it takes one or two revisions, and has defined the A...B syntax to mean how it's define...
Get Enum from Description attribute [duplicate]
I have a generic extension method which gets the Description attribute from an Enum :
6 Answers
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