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Are there any smart cases of runtime code modification?
...as a time (long ago, I know), when computers had no instructions to return from a subroutine or to indirectly address memory. Self modifying code was the only way to implement subroutines, pointers and arrays.
More cases of code modification:
Many debuggers replace instructions to implement brea...
How to check if object (variable) is defined in R?
...ed for the need of the specification of the environment when invoking ls() from within a function. So, thank you for that, stackoverflow! There is also an "all.names" attribute that I should have set to true but have omitted.
...
Checking network connection
...(connecting to an HTTP/FTP/IMAP service)
Avoid calls to external utilities from Python or other language of choice (we need to come up with a language-agnostic solution that doesn't rely on third-party solutions)
To comply with these, one approach could be to, check if one of the Google's public DN...
Return a “NULL” object if search result not found
...ava, if I had class with a 'search' method that would return an object T from a Collection< T > that matched a specific parameter, I would return that object and if the object was not found in the collection, I would return null . Then in my calling function I would just check if(tResult...
How to use gitignore command in git
... in folder your_project and a doc directory: your_project/doc.
Remove it from the project directory (without actually deleting it):
git rm --cached doc/*
If you don't already have a .gitignore, you can make one right inside of your project folder: project/.gitignore.
Put doc/* in the .gitignore ...
Remove the legend on a matplotlib figure
...
According to the information from @naitsirhc, I wanted to find the official API documentation. Here are my finding and some sample code.
I created a matplotlib.Axes object by seaborn.scatterplot().
The ax.get_legend() will return a matplotlib.legned.Leg...
How to use Session attributes in Spring-mvc
...().setAttribute("cart",value);
return "testJsp";
}
and you can get it from controller like this :
ShoppingCart cart = (ShoppingCart)session.getAttribute("cart");
Make your controller session scoped
@Controller
@Scope("session")
Scope the Objects ,for example you have user object that should...
Display name of the current file in vim?
...
How about a full path? When I start vim from ~/dev/file.py and execure :f within vim, I get file.py as the output instead of ~/dev/file.py.
– gxyd
Dec 8 '17 at 13:43
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What is the 'dynamic' type in C# 4.0 used for?
...variable's type can change. The variable in question is of type "dynamic" (from the perspective of the C# language; from the CLR's perspective the variable is of type object). The type of a variable never changes. The runtime type of the value of a variable can be any type compatible with the type o...
How can I use a search engine to search for special characters? [closed]
Google strips most special characters from the text they index so it's not a good tool for many troubleshooting-related tasks, such as finding out what the variable "$-" is in perl, or searching for error output that is loaded with special characters.
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